Initial commit
This commit is contained in:
root
8995
traefik-crowdsec-stack/crowdsec/config/hub/.index.json
Normal file
8995
traefik-crowdsec-stack/crowdsec/config/hub/.index.json
Normal file
File diff suppressed because one or more lines are too long
@@ -0,0 +1,25 @@
|
||||
parsers:
|
||||
- crowdsecurity/http-logs
|
||||
scenarios:
|
||||
- crowdsecurity/http-crawl-non_statics
|
||||
- crowdsecurity/http-probing
|
||||
- crowdsecurity/http-bad-user-agent
|
||||
- crowdsecurity/http-path-traversal-probing
|
||||
- crowdsecurity/http-sensitive-files
|
||||
- crowdsecurity/http-sqli-probing
|
||||
- crowdsecurity/http-xss-probing
|
||||
- crowdsecurity/http-backdoors-attempts
|
||||
- ltsich/http-w00tw00t
|
||||
- crowdsecurity/http-generic-bf
|
||||
- crowdsecurity/http-open-proxy
|
||||
collections:
|
||||
- crowdsecurity/http-cve
|
||||
|
||||
description: "http common : scanners detection"
|
||||
author: crowdsecurity
|
||||
tags:
|
||||
- linux
|
||||
- http
|
||||
- crawl
|
||||
- scan
|
||||
|
||||
@@ -0,0 +1,10 @@
|
||||
parsers:
|
||||
- crowdsecurity/dovecot-logs
|
||||
scenarios:
|
||||
- crowdsecurity/dovecot-spam
|
||||
description: "dovecot support : parser and spammer detection"
|
||||
author: crowdsecurity
|
||||
tags:
|
||||
- linux
|
||||
- spam
|
||||
- bruteforce
|
||||
@@ -0,0 +1,30 @@
|
||||
scenarios:
|
||||
- crowdsecurity/http-cve-2021-41773
|
||||
- crowdsecurity/http-cve-2021-42013
|
||||
- crowdsecurity/grafana-cve-2021-43798
|
||||
- crowdsecurity/vmware-vcenter-vmsa-2021-0027
|
||||
- crowdsecurity/fortinet-cve-2018-13379
|
||||
- crowdsecurity/pulse-secure-sslvpn-cve-2019-11510
|
||||
- crowdsecurity/f5-big-ip-cve-2020-5902
|
||||
- crowdsecurity/thinkphp-cve-2018-20062
|
||||
- crowdsecurity/apache_log4j2_cve-2021-44228
|
||||
- crowdsecurity/jira_cve-2021-26086
|
||||
- crowdsecurity/spring4shell_cve-2022-22965
|
||||
- crowdsecurity/vmware-cve-2022-22954
|
||||
- crowdsecurity/CVE-2022-37042
|
||||
- crowdsecurity/CVE-2022-41082
|
||||
- crowdsecurity/CVE-2022-35914
|
||||
- crowdsecurity/CVE-2022-40684
|
||||
- crowdsecurity/CVE-2022-26134
|
||||
- crowdsecurity/CVE-2022-42889
|
||||
- crowdsecurity/CVE-2022-41697
|
||||
- crowdsecurity/CVE-2022-46169
|
||||
- crowdsecurity/CVE-2022-44877
|
||||
- crowdsecurity/CVE-2019-18935
|
||||
- crowdsecurity/netgear_rce
|
||||
author: crowdsecurity
|
||||
tags:
|
||||
- web
|
||||
- exploit
|
||||
- cve
|
||||
- http
|
||||
@@ -0,0 +1,11 @@
|
||||
parsers:
|
||||
- crowdsecurity/syslog-logs
|
||||
- crowdsecurity/geoip-enrich
|
||||
- crowdsecurity/dateparse-enrich
|
||||
collections:
|
||||
- crowdsecurity/sshd
|
||||
description: "core linux support : syslog+geoip+ssh"
|
||||
author: crowdsecurity
|
||||
tags:
|
||||
- linux
|
||||
|
||||
@@ -0,0 +1,15 @@
|
||||
parsers:
|
||||
#generic post-parsing of http stuff
|
||||
- crowdsecurity/nginx-logs
|
||||
collections:
|
||||
- crowdsecurity/base-http-scenarios
|
||||
scenarios:
|
||||
- crowdsecurity/nginx-req-limit-exceeded
|
||||
description: "nginx support : parser and generic http scenarios"
|
||||
author: crowdsecurity
|
||||
tags:
|
||||
- linux
|
||||
- nginx
|
||||
- crawl
|
||||
- scan
|
||||
|
||||
@@ -0,0 +1,11 @@
|
||||
parsers:
|
||||
- crowdsecurity/postfix-logs
|
||||
- crowdsecurity/postscreen-logs
|
||||
scenarios:
|
||||
- crowdsecurity/postfix-spam
|
||||
description: "postfix support : parser and spammer detection"
|
||||
author: crowdsecurity
|
||||
tags:
|
||||
- linux
|
||||
- spam
|
||||
- bruteforce
|
||||
@@ -0,0 +1,12 @@
|
||||
parsers:
|
||||
- crowdsecurity/sshd-logs
|
||||
scenarios:
|
||||
- crowdsecurity/ssh-bf
|
||||
- crowdsecurity/ssh-slow-bf
|
||||
description: "sshd support : parser and brute-force detection"
|
||||
author: crowdsecurity
|
||||
tags:
|
||||
- linux
|
||||
- ssh
|
||||
- bruteforce
|
||||
|
||||
@@ -0,0 +1,12 @@
|
||||
# co-authored with gmelodie (https://github.com/gmelodie)
|
||||
parsers:
|
||||
- crowdsecurity/traefik-logs
|
||||
collections:
|
||||
- crowdsecurity/base-http-scenarios
|
||||
description: "traefik support: parser and generic http scenarios"
|
||||
author: crowdsecurity
|
||||
tags:
|
||||
- traefik
|
||||
- http
|
||||
- bruteforce
|
||||
|
||||
@@ -0,0 +1,10 @@
|
||||
postoverflows:
|
||||
- crowdsecurity/seo-bots-whitelist
|
||||
- crowdsecurity/cdn-whitelist
|
||||
- crowdsecurity/rdns
|
||||
description: "Good actors whitelists"
|
||||
author: crowdsecurity
|
||||
tags:
|
||||
- whitelist
|
||||
- bots
|
||||
- partners
|
||||
@@ -0,0 +1,19 @@
|
||||
filter: "evt.Line.Labels.type == 'containerd'"
|
||||
onsuccess: next_stage
|
||||
name: crowdsecurity/cri-logs
|
||||
description: CRI logging format parser
|
||||
nodes:
|
||||
- grok:
|
||||
pattern: "^%{TIMESTAMP_ISO8601:cri_timestamp} %{WORD:stream} %{WORD:logtag} %{GREEDYDATA:message}"
|
||||
apply_on: Line.Raw
|
||||
statics:
|
||||
- parsed: "logsource"
|
||||
value: "cri"
|
||||
- target: evt.StrTime
|
||||
expression: evt.Parsed.cri_timestamp
|
||||
- parsed: program
|
||||
expression: evt.Line.Labels.program
|
||||
- meta: datasource_path
|
||||
expression: evt.Line.Src
|
||||
- meta: datasource_type
|
||||
expression: evt.Line.Module
|
||||
@@ -0,0 +1,12 @@
|
||||
#If it's docker, we are going to extract log line from it
|
||||
filter: "evt.Line.Labels.type == 'docker'"
|
||||
onsuccess: next_stage
|
||||
name: crowdsecurity/docker-logs
|
||||
description: docker json logs parser
|
||||
statics:
|
||||
- target: evt.StrTime
|
||||
expression: JsonExtract(evt.Line.Raw, "time")
|
||||
- parsed: message
|
||||
expression: JsonExtractUnescape(evt.Line.Raw, "log")
|
||||
- parsed: program
|
||||
expression: evt.Line.Labels.program
|
||||
@@ -0,0 +1,48 @@
|
||||
#If it's syslog, we are going to extract progname from it
|
||||
filter: "evt.Line.Labels.type == 'syslog'"
|
||||
onsuccess: next_stage
|
||||
pattern_syntax:
|
||||
RAW_SYSLOG_PREFIX: '^<%{NUMBER:stuff1}>%{NUMBER:stuff2} %{SYSLOGBASE2} %{DATA:program} %{NUMBER:pid}'
|
||||
RAW_SYSLOG_META: '\[meta sequenceId="%{NOTDQUOTE:seq_id}"\]'
|
||||
name: crowdsecurity/syslog-logs
|
||||
nodes:
|
||||
- grok:
|
||||
#this is a named regular expression. grok patterns can be kept into separate files for readability
|
||||
pattern: "^%{SYSLOGLINE}"
|
||||
#This is the field of the `Event` to which the regexp should be applied
|
||||
apply_on: Line.Raw
|
||||
- grok:
|
||||
#a second pattern for unparsed syslog lines, as saw in opnsense
|
||||
pattern: '%{RAW_SYSLOG_PREFIX} - %{RAW_SYSLOG_META} %{GREEDYDATA:message}'
|
||||
apply_on: Line.Raw
|
||||
#if the node was successfull, statics will be applied.
|
||||
statics:
|
||||
- meta: machine
|
||||
expression: evt.Parsed.logsource
|
||||
- parsed: "logsource"
|
||||
value: "syslog"
|
||||
# syslog date can be in two different fields (one of hte assignment will fail)
|
||||
- target: evt.StrTime
|
||||
expression: evt.Parsed.timestamp
|
||||
- target: evt.StrTime
|
||||
expression: evt.Parsed.timestamp8601
|
||||
- meta: datasource_path
|
||||
expression: evt.Line.Src
|
||||
- meta: datasource_type
|
||||
expression: evt.Line.Module
|
||||
---
|
||||
#if it's not syslog, the type is the progname
|
||||
filter: "evt.Line.Labels.type != 'syslog'"
|
||||
onsuccess: next_stage
|
||||
name: crowdsecurity/non-syslog
|
||||
#debug: true
|
||||
statics:
|
||||
- parsed: message
|
||||
expression: evt.Line.Raw
|
||||
- parsed: program
|
||||
expression: evt.Line.Labels.type
|
||||
- meta: datasource_path
|
||||
expression: evt.Line.Src
|
||||
- meta: datasource_type
|
||||
expression: evt.Line.Module
|
||||
|
||||
@@ -0,0 +1,26 @@
|
||||
#contribution by @ltsich
|
||||
onsuccess: next_stage
|
||||
debug: false
|
||||
filter: "evt.Parsed.program == 'dovecot'"
|
||||
name: crowdsecurity/dovecot-logs
|
||||
description: "Parse dovecot logs"
|
||||
nodes:
|
||||
- grok:
|
||||
pattern: "%{WORD:protocol}-login: %{DATA:dovecot_login_message}: user=<%{DATA:dovecot_user}>.*, rip=%{IP:dovecot_remote_ip}, lip=%{IP:dovecot_local_ip}"
|
||||
apply_on: message
|
||||
- grok:
|
||||
pattern: "auth-worker\\(%{INT}\\): %{WORD:dovecot_user_backend}\\(%{DATA:dovecot_user},%{IP:dovecot_remote_ip},?%{DATA}\\): (%{DATA}: )?%{DATA:dovecot_login_message}$"
|
||||
apply_on: message
|
||||
- grok:
|
||||
pattern: "auth-worker\\(%{INT}\\): (Info: )?conn unix:auth-worker \\(pid=%{INT},uid=%{INT}\\): auth-worker<%{INT}>: %{WORD:dovecot_user_backend}\\(%{DATA:dovecot_user},%{IP:dovecot_remote_ip},?%{DATA}\\): (%{DATA}: )?%{DATA:dovecot_login_message}$"
|
||||
apply_on: message
|
||||
- grok:
|
||||
pattern: "auth: passwd-file\\(%{DATA:dovecot_user},%{IP:dovecot_remote_ip}\\): (%{DATA}: )?%{DATA:dovecot_login_message}$"
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: dovecot_logs
|
||||
- meta: source_ip
|
||||
expression: "evt.Parsed.dovecot_remote_ip"
|
||||
- meta: dovecot_login_result
|
||||
expression: "any(['Authentication failure', 'Password mismatch', 'password mismatch', 'auth failed', 'unknown user'], {evt.Parsed.dovecot_login_message contains #}) ? 'auth_failed' : ''"
|
||||
@@ -0,0 +1,70 @@
|
||||
filter: "evt.Parsed.program startsWith 'nginx'"
|
||||
onsuccess: next_stage
|
||||
name: crowdsecurity/nginx-logs
|
||||
description: "Parse nginx access and error logs"
|
||||
pattern_syntax:
|
||||
NGCUSTOMUSER: '[a-zA-Z0-9\.\@\-\+_%]+'
|
||||
nodes:
|
||||
- grok:
|
||||
pattern: '(%{IPORHOST:target_fqdn} )?%{IPORHOST:remote_addr} - %{NGCUSTOMUSER:remote_user}? \[%{HTTPDATE:time_local}\] "%{WORD:verb} %{DATA:request} HTTP/%{NUMBER:http_version}" %{NUMBER:status} %{NUMBER:body_bytes_sent} "%{NOTDQUOTE:http_referer}" "%{NOTDQUOTE:http_user_agent}"( %{NUMBER:request_length} %{NUMBER:request_time} \[%{DATA:proxy_upstream_name}\] \[%{DATA:proxy_alternative_upstream_name}\])?'
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: http_access-log
|
||||
- target: evt.StrTime
|
||||
expression: evt.Parsed.time_local
|
||||
- grok:
|
||||
# and this one the error log
|
||||
pattern: '(%{IPORHOST:target_fqdn} )?%{NGINXERRTIME:time} \[%{LOGLEVEL:loglevel}\] %{NONNEGINT:pid}#%{NONNEGINT:tid}: (\*%{NONNEGINT:cid} )?%{GREEDYDATA:message}, client: %{IPORHOST:remote_addr}, server: %{DATA:target_fqdn}, request: "%{WORD:verb} ([^/]+)?%{URIPATHPARAM:request}( HTTP/%{NUMBER:http_version})?", host: "%{IPORHOST}(:%{NONNEGINT})?"'
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: http_error-log
|
||||
- target: evt.StrTime
|
||||
expression: evt.Parsed.time
|
||||
pattern_syntax:
|
||||
NO_DOUBLE_QUOTE: '[^"]+'
|
||||
onsuccess: next_stage
|
||||
nodes:
|
||||
- filter: "evt.Parsed.message contains 'was not found in'"
|
||||
pattern_syntax:
|
||||
USER_NOT_FOUND: 'user "%{NO_DOUBLE_QUOTE:username}" was not found in "%{NO_DOUBLE_QUOTE}"'
|
||||
grok:
|
||||
pattern: '%{USER_NOT_FOUND}'
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: sub_type
|
||||
value: "auth_fail"
|
||||
- meta: username
|
||||
expression: evt.Parsed.username
|
||||
- filter: "evt.Parsed.message contains 'password mismatch'"
|
||||
pattern_syntax:
|
||||
PASSWORD_MISMATCH: 'user "%{NO_DOUBLE_QUOTE:username}": password mismatch'
|
||||
grok:
|
||||
pattern: '%{PASSWORD_MISMATCH}'
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: sub_type
|
||||
value: "auth_fail"
|
||||
- meta: username
|
||||
expression: evt.Parsed.username
|
||||
- filter: "evt.Parsed.message contains 'limiting requests, excess'"
|
||||
statics:
|
||||
- meta: sub_type
|
||||
value: "req_limit_exceeded"
|
||||
# these ones apply for both grok patterns
|
||||
statics:
|
||||
- meta: service
|
||||
value: http
|
||||
- meta: source_ip
|
||||
expression: "evt.Parsed.remote_addr"
|
||||
- meta: http_status
|
||||
expression: "evt.Parsed.status"
|
||||
- meta: http_path
|
||||
expression: "evt.Parsed.request"
|
||||
- meta: http_verb
|
||||
expression: "evt.Parsed.verb"
|
||||
- meta: http_user_agent
|
||||
expression: "evt.Parsed.http_user_agent"
|
||||
- meta: target_fqdn
|
||||
expression: "evt.Parsed.target_fqdn"
|
||||
@@ -0,0 +1,61 @@
|
||||
# Copyright (c) 2014, 2015, Rudy Gevaert
|
||||
# Copyright (c) 2020 Crowdsec
|
||||
|
||||
# Permission is hereby granted, free of charge, to any person obtaining
|
||||
# a copy of this software and associated documentation files (the
|
||||
# "Software"), to deal in the Software without restriction, including
|
||||
# without limitation the rights to use, copy, modify, merge, publish,
|
||||
# distribute, sublicense, and/or sell copies of the Software, and to
|
||||
# permit persons to whom the Software is furnished to do so, subject to
|
||||
# the following conditions:
|
||||
|
||||
# The above copyright notice and this permission notice shall be
|
||||
# included in all copies or substantial portions of the Software.
|
||||
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
|
||||
# Some of the groks used here are from https://github.com/rgevaert/grok-patterns/blob/master/grok.d/postfix_patterns
|
||||
onsuccess: next_stage
|
||||
filter: "evt.Parsed.program in ['postfix/smtpd','postfix/smtps/smtpd','postfix/submission/smtpd', 'postfix/smtps-haproxy/smtpd', 'postfix/submission-haproxy/smtpd']"
|
||||
name: crowdsecurity/postfix-logs
|
||||
pattern_syntax:
|
||||
POSTFIX_HOSTNAME: '(%{HOSTNAME}|unknown)'
|
||||
POSTFIX_COMMAND: '(AUTH|STARTTLS|CONNECT|EHLO|HELO|RCPT)'
|
||||
POSTFIX_ACTION: 'discard|dunno|filter|hold|ignore|info|prepend|redirect|replace|reject|warn'
|
||||
RELAY: '(?:%{HOSTNAME:remote_host}(?:\[%{IP:remote_addr}\](?::[0-9]+(.[0-9]+)?)?)?)'
|
||||
description: "Parse postfix logs"
|
||||
nodes:
|
||||
- grok:
|
||||
apply_on: message
|
||||
pattern: 'lost connection after %{DATA:smtp_response} from %{RELAY}'
|
||||
statics:
|
||||
- meta: log_type_enh
|
||||
value: spam-attempt
|
||||
- grok:
|
||||
apply_on: message
|
||||
pattern: 'warning: %{POSTFIX_HOSTNAME:remote_host}\[%{IP:remote_addr}\]: SASL ((?i)LOGIN|PLAIN|(?:CRAM|DIGEST)-MD5) authentication failed:%{GREEDYDATA:message_failure}'
|
||||
statics:
|
||||
- meta: log_type_enh
|
||||
value: spam-attempt
|
||||
- grok:
|
||||
apply_on: message
|
||||
pattern: 'NOQUEUE: %{POSTFIX_ACTION:action}: %{DATA:command} from %{RELAY}: %{GREEDYDATA:reason}'
|
||||
statics:
|
||||
- meta: action
|
||||
expression: "evt.Parsed.action"
|
||||
statics:
|
||||
- meta: service
|
||||
value: postfix
|
||||
- meta: source_ip
|
||||
expression: "evt.Parsed.remote_addr"
|
||||
- meta: source_hostname
|
||||
expression: "evt.Parsed.remote_host"
|
||||
- meta: log_type
|
||||
value: postfix
|
||||
|
||||
@@ -0,0 +1,20 @@
|
||||
onsuccess: next_stage
|
||||
filter: "evt.Parsed.program in ['postfix/postscreen', 'haproxy/postscreen']"
|
||||
name: crowdsecurity/postscreen-logs
|
||||
pattern_syntax:
|
||||
POSTSCREEN_PREGREET: 'PREGREET'
|
||||
POSTSCREEN_PREGREET_TIME_ATTEMPT: '\d+.\d+'
|
||||
description: "Parse postscreen logs"
|
||||
nodes:
|
||||
- grok:
|
||||
apply_on: message
|
||||
pattern: '%{POSTSCREEN_PREGREET:pregreet} %{INT:count} after %{POSTSCREEN_PREGREET_TIME_ATTEMPT:time_attempt} from \[%{IP:remote_addr}\]:%{INT:port}: %{GREEDYDATA:message_attempt}'
|
||||
statics:
|
||||
- meta: service
|
||||
value: postscreen
|
||||
- meta: source_ip
|
||||
expression: "evt.Parsed.remote_addr"
|
||||
- meta: pregreet
|
||||
expression: "evt.Parsed.pregreet"
|
||||
|
||||
|
||||
@@ -0,0 +1,100 @@
|
||||
onsuccess: next_stage
|
||||
#debug: true
|
||||
filter: "evt.Parsed.program == 'sshd'"
|
||||
name: crowdsecurity/sshd-logs
|
||||
description: "Parse openSSH logs"
|
||||
pattern_syntax:
|
||||
# The IP grok pattern that ships with crowdsec is buggy and does not capture the last digit of an IP if it is the last thing it matches, and the last octet starts with a 2
|
||||
# https://github.com/crowdsecurity/crowdsec/issues/938
|
||||
IPv4_WORKAROUND: (?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)
|
||||
IP_WORKAROUND: (?:%{IPV6}|%{IPv4_WORKAROUND})
|
||||
SSHD_AUTH_FAIL: 'pam_%{DATA:pam_type}\(sshd:auth\): authentication failure; logname= uid=%{NUMBER:uid}? euid=%{NUMBER:euid}? tty=ssh ruser= rhost=%{IP_WORKAROUND:sshd_client_ip}( %{SPACE}user=%{USERNAME:sshd_invalid_user})?'
|
||||
SSHD_MAGIC_VALUE_FAILED: 'Magic value check failed \(\d+\) on obfuscated handshake from %{IP_WORKAROUND:sshd_client_ip} port \d+'
|
||||
SSHD_INVALID_USER: 'Invalid user\s*%{USERNAME:sshd_invalid_user}? from %{IP_WORKAROUND:sshd_client_ip}( port \d+)?'
|
||||
SSHD_INVALID_BANNER: 'banner exchange: Connection from %{IP_WORKAROUND:sshd_client_ip} port \d+: invalid format'
|
||||
SSHD_PREAUTH_AUTHENTICATING_USER: 'Connection closed by (authenticating|invalid) user %{USERNAME:sshd_invalid_user} %{IP_WORKAROUND:sshd_client_ip} port \d+ \[preauth\]'
|
||||
#following: https://github.com/crowdsecurity/crowdsec/issues/1201 - some scanners behave differently and trigger this one
|
||||
SSHD_PREAUTH_AUTHENTICATING_USER_ALT: 'Disconnected from (authenticating|invalid) user %{USERNAME:sshd_invalid_user} %{IP_WORKAROUND:sshd_client_ip} port \d+ \[preauth\]'
|
||||
SSHD_BAD_KEY_NEGOTIATION: 'Unable to negotiate with %{IP_WORKAROUND:sshd_client_ip} port \d+: no matching (host key type|key exchange method|MAC) found.'
|
||||
nodes:
|
||||
- grok:
|
||||
name: "SSHD_FAIL"
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: ssh_failed-auth
|
||||
- meta: target_user
|
||||
expression: "evt.Parsed.sshd_invalid_user"
|
||||
- grok:
|
||||
name: "SSHD_PREAUTH_AUTHENTICATING_USER_ALT"
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: ssh_failed-auth
|
||||
- meta: target_user
|
||||
expression: "evt.Parsed.sshd_invalid_user"
|
||||
- grok:
|
||||
name: "SSHD_PREAUTH_AUTHENTICATING_USER"
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: ssh_failed-auth
|
||||
- meta: target_user
|
||||
expression: "evt.Parsed.sshd_invalid_user"
|
||||
- grok:
|
||||
name: "SSHD_DISC_PREAUTH"
|
||||
apply_on: message
|
||||
- grok:
|
||||
name: "SSHD_BAD_VERSION"
|
||||
apply_on: message
|
||||
- grok:
|
||||
name: "SSHD_INVALID_USER"
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: ssh_failed-auth
|
||||
- meta: target_user
|
||||
expression: "evt.Parsed.sshd_invalid_user"
|
||||
- grok:
|
||||
name: "SSHD_INVALID_BANNER"
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: ssh_failed-auth
|
||||
- meta: extra_log_type
|
||||
value: ssh_bad_banner
|
||||
- grok:
|
||||
name: "SSHD_USER_FAIL"
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: ssh_failed-auth
|
||||
- meta: target_user
|
||||
expression: "evt.Parsed.sshd_invalid_user"
|
||||
- grok:
|
||||
name: "SSHD_AUTH_FAIL"
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: ssh_failed-auth
|
||||
- meta: target_user
|
||||
expression: "evt.Parsed.sshd_invalid_user"
|
||||
- grok:
|
||||
name: "SSHD_MAGIC_VALUE_FAILED"
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: ssh_failed-auth
|
||||
- meta: target_user
|
||||
expression: "evt.Parsed.sshd_invalid_user"
|
||||
- grok:
|
||||
name: "SSHD_BAD_KEY_NEGOTIATION"
|
||||
apply_on: message
|
||||
statics:
|
||||
- meta: log_type
|
||||
value: ssh_bad_keyexchange
|
||||
statics:
|
||||
- meta: service
|
||||
value: ssh
|
||||
- meta: source_ip
|
||||
expression: "evt.Parsed.sshd_client_ip"
|
||||
@@ -0,0 +1,69 @@
|
||||
# co-authored with gmelodie (https://github.com/gmelodie)
|
||||
name: crowdsecurity/traefik-logs
|
||||
description: "Parse Traefik access logs"
|
||||
filter: "evt.Parsed.program startsWith 'traefik'"
|
||||
#debug: true
|
||||
onsuccess: next_stage
|
||||
pattern_syntax:
|
||||
TRAEFIK_ROUTER: '(%{USER}@%{URIHOST}|\-)'
|
||||
TRAEFIK_SERVER_URL: '(%{URI}|\-)'
|
||||
NUMBER_MINUS: '[0-9-]+'
|
||||
NGCUSTOMUSER: '[a-zA-Z0-9\.\@\-\+_%]+'
|
||||
NGINXACCESS2: '%{IPORHOST:remote_addr} - %{NGCUSTOMUSER:remote_user} \[%{HTTPDATE:time_local}\] "%{WORD:verb} %{DATA:request} HTTP/%{NUMBER:http_version}" %{NUMBER_MINUS:status} %{NUMBER_MINUS:body_bytes_sent} "%{NOTDQUOTE:http_referer}" "%{NOTDQUOTE:http_user_agent}"'
|
||||
nodes:
|
||||
- grok: # CLF parser
|
||||
pattern: '%{NGINXACCESS2} %{NUMBER:number_of_requests_received_since_traefik_started} "%{TRAEFIK_ROUTER:traefik_router_name}" "%{TRAEFIK_SERVER_URL:traefik_server_url}" %{NUMBER:request_duration_in_ms}ms'
|
||||
apply_on: message
|
||||
- filter: UnmarshalJSON(evt.Line.Raw, evt.Unmarshaled, "traefik") in ["", nil]
|
||||
statics:
|
||||
- parsed: remote_addr
|
||||
expression: evt.Unmarshaled.traefik.ClientHost
|
||||
- parsed: dest_addr
|
||||
## Split dest_addr to get IP only as this is original functionality
|
||||
expression: Split(evt.Unmarshaled.traefik.ClientAddr, ':')[0]
|
||||
- parsed: request_addr
|
||||
expression: evt.Unmarshaled.traefik.RequestAddr
|
||||
- parsed: service_addr
|
||||
## Split service_addr to get IP only as this is original functionality
|
||||
expression: "evt.Unmarshaled.traefik.ServiceAddr != nil ? Split(evt.Unmarshaled.traefik.ServiceAddr, ':')[0] : nil"
|
||||
- parsed: http_user_agent
|
||||
expression: evt.Unmarshaled.traefik["request_User-Agent"] ## We have to access via [] as the key contains a dash
|
||||
- parsed: body_bytes_sent
|
||||
## We have to check if DownstreamContentSize is nil, as it will cause EXPR error if it is
|
||||
expression: "evt.Unmarshaled.traefik.DownstreamContentSize != nil ? int(evt.Unmarshaled.traefik.DownstreamContentSize) : nil"
|
||||
- parsed: request_duration_in_ms
|
||||
expression: int(evt.Unmarshaled.traefik.Duration)
|
||||
- parsed: traefik_router_name
|
||||
expression: evt.Unmarshaled.traefik.RouterName
|
||||
- parsed: time_local
|
||||
expression: evt.Unmarshaled.traefik.time
|
||||
- parsed: verb
|
||||
expression: evt.Unmarshaled.traefik.RequestMethod
|
||||
- parsed: request
|
||||
expression: evt.Unmarshaled.traefik.RequestPath
|
||||
- parsed: http_version
|
||||
## Split http_version to get version only as this is original functionality
|
||||
expression: Split(evt.Unmarshaled.traefik.RequestProtocol, '/')[1]
|
||||
- parsed: status
|
||||
expression: int(evt.Unmarshaled.traefik.DownstreamStatus)
|
||||
statics:
|
||||
- meta: service
|
||||
value: http
|
||||
- meta: http_status
|
||||
expression: "evt.Parsed.status"
|
||||
- meta: http_path
|
||||
expression: "evt.Parsed.request"
|
||||
- meta: user
|
||||
expression: "evt.Parsed.remote_user"
|
||||
- meta: source_ip
|
||||
expression: "evt.Parsed.remote_addr"
|
||||
- meta: http_user_agent
|
||||
expression: "evt.Parsed.http_user_agent"
|
||||
- meta: log_type
|
||||
value: http_access-log
|
||||
- target: evt.StrTime
|
||||
expression: "evt.Parsed.time_local"
|
||||
- meta: traefik_router_name
|
||||
expression: "evt.Parsed.traefik_router_name"
|
||||
- meta: http_verb
|
||||
expression: "evt.Parsed.verb"
|
||||
@@ -0,0 +1,11 @@
|
||||
filter: "evt.StrTime != ''"
|
||||
name: crowdsecurity/dateparse-enrich
|
||||
#debug: true
|
||||
#it's a hack lol
|
||||
statics:
|
||||
- method: ParseDate
|
||||
expression: evt.StrTime
|
||||
- target: MarshaledTime
|
||||
expression: evt.Enriched.MarshaledTime
|
||||
- meta: timestamp
|
||||
expression: evt.Enriched.MarshaledTime
|
||||
@@ -0,0 +1,27 @@
|
||||
filter: "'source_ip' in evt.Meta"
|
||||
name: crowdsecurity/geoip-enrich
|
||||
description: "Populate event with geoloc info : as, country, coords, source range."
|
||||
data:
|
||||
- source_url: https://crowdsec-statics-assets.s3-eu-west-1.amazonaws.com/GeoLite2-City.mmdb
|
||||
dest_file: GeoLite2-City.mmdb
|
||||
- source_url: https://crowdsec-statics-assets.s3-eu-west-1.amazonaws.com/GeoLite2-ASN.mmdb
|
||||
dest_file: GeoLite2-ASN.mmdb
|
||||
statics:
|
||||
- method: GeoIpCity
|
||||
expression: evt.Meta.source_ip
|
||||
- meta: IsoCode
|
||||
expression: evt.Enriched.IsoCode
|
||||
- meta: IsInEU
|
||||
expression: evt.Enriched.IsInEU
|
||||
- meta: GeoCoords
|
||||
expression: evt.Enriched.GeoCoords
|
||||
- method: GeoIpASN
|
||||
expression: evt.Meta.source_ip
|
||||
- meta: ASNNumber
|
||||
expression: evt.Enriched.ASNNumber
|
||||
- meta: ASNOrg
|
||||
expression: evt.Enriched.ASNOrg
|
||||
- method: IpToRange
|
||||
expression: evt.Meta.source_ip
|
||||
- meta: SourceRange
|
||||
expression: evt.Enriched.SourceRange
|
||||
@@ -0,0 +1,33 @@
|
||||
filter: "evt.Meta.service == 'http' && evt.Meta.log_type in ['http_access-log', 'http_error-log']"
|
||||
description: "Parse more Specifically HTTP logs, such as HTTP Code, HTTP path, HTTP args and if its a static ressource"
|
||||
name: crowdsecurity/http-logs
|
||||
pattern_syntax:
|
||||
DIR: "^.*/"
|
||||
FILE: "[^/].*?"
|
||||
EXT: "\\.[^.]*$|$"
|
||||
nodes:
|
||||
- statics:
|
||||
- parsed: "impact_completion"
|
||||
# the value of a field can as well be determined as the result of an expression
|
||||
expression: "evt.Meta.http_status in ['404', '403', '502'] ? 'false' : 'true'"
|
||||
- target: evt.Parsed.static_ressource
|
||||
value: 'false'
|
||||
# let's split the path?query if possible
|
||||
- grok:
|
||||
pattern: "^%{GREEDYDATA:request}\\?%{GREEDYDATA:http_args}$"
|
||||
apply_on: request
|
||||
# this is another node, with its own pattern_syntax
|
||||
- #debug: true
|
||||
grok:
|
||||
pattern: "%{DIR:file_dir}(%{FILE:file_frag}%{EXT:file_ext})?"
|
||||
apply_on: request
|
||||
statics:
|
||||
- meta: http_path
|
||||
expression: "evt.Parsed.http_path"
|
||||
# meta af
|
||||
- meta: http_args_len
|
||||
expression: "len(evt.Parsed.http_args)"
|
||||
- parsed: file_name
|
||||
expression: evt.Parsed.file_frag + evt.Parsed.file_ext
|
||||
- parsed: static_ressource
|
||||
expression: "Upper(evt.Parsed.file_ext) in ['.JPG', '.CSS', '.JS', '.JPEG', '.PNG', '.SVG', '.MAP', '.ICO', '.OTF', '.GIF', '.MP3', '.MP4', '.WOFF', '.WOFF2', '.TTF', '.OTF', '.EOT', '.WEBP', '.WAV', '.GZ', '.BROTLI', '.BVR', '.TS', '.BMP'] ? 'true' : 'false'"
|
||||
@@ -0,0 +1,14 @@
|
||||
name: crowdsecurity/whitelists
|
||||
description: "Whitelist events from private ipv4 addresses"
|
||||
whitelist:
|
||||
reason: "private ipv4/ipv6 ip/ranges"
|
||||
ip:
|
||||
- "127.0.0.1"
|
||||
- "::1"
|
||||
cidr:
|
||||
- "192.168.0.0/16"
|
||||
- "10.0.0.0/8"
|
||||
- "172.16.0.0/12"
|
||||
# expression:
|
||||
# - "'foo.com' in evt.Meta.source_ip.reverse"
|
||||
|
||||
@@ -0,0 +1,9 @@
|
||||
onsuccess: next_stage
|
||||
filter: "evt.Overflow.Alert.Remediation == true && evt.Overflow.Alert.GetScope() == 'Ip'"
|
||||
name: crowdsecurity/rdns
|
||||
description: "Lookup the DNS associated to the source IP only for overflows"
|
||||
statics:
|
||||
- method: reverse_dns
|
||||
expression: evt.Overflow.Alert.Source.IP
|
||||
- meta: reverse_dns
|
||||
expression: evt.Enriched.reverse_dns
|
||||
@@ -0,0 +1,14 @@
|
||||
name: crowdsecurity/cdn-whitelist
|
||||
description: "Whitelist CDN providers"
|
||||
whitelist:
|
||||
reason: "CDN provider"
|
||||
expression:
|
||||
- "any(File('cloudflare_ips.txt'), { IpInRange(evt.Overflow.Alert.Source.IP ,#)})"
|
||||
- "any(File('cloudflare_ip6s.txt'), { IpInRange(evt.Overflow.Alert.Source.IP ,#)})"
|
||||
data:
|
||||
- source_url: https://www.cloudflare.com/ips-v4
|
||||
dest_file: cloudflare_ips.txt
|
||||
type: string
|
||||
- source_url: https://www.cloudflare.com/ips-v6
|
||||
dest_file: cloudflare_ip6s.txt
|
||||
type: string
|
||||
@@ -0,0 +1,18 @@
|
||||
name: crowdsecurity/seo-bots-whitelist
|
||||
description: "Whitelist good search engine crawlers"
|
||||
whitelist:
|
||||
reason: "good bots (search engine crawlers)"
|
||||
expression:
|
||||
- "any(File('rdns_seo_bots.txt'), { len(#) > 0 && evt.Enriched.reverse_dns endsWith #})"
|
||||
- "RegexpInFile(evt.Enriched.reverse_dns, 'rdns_seo_bots.regex')"
|
||||
- "any(File('ip_seo_bots.txt'), { len(#) > 0 && IpInRange(evt.Overflow.Alert.Source.IP ,#)})"
|
||||
data:
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/whitelists/benign_bots/search_engine_crawlers/rdns_seo_bots.txt
|
||||
dest_file: rdns_seo_bots.txt
|
||||
type: string
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/whitelists/benign_bots/search_engine_crawlers/rnds_seo_bots.regex
|
||||
dest_file: rdns_seo_bots.regex
|
||||
type: regexp
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/whitelists/benign_bots/search_engine_crawlers/ip_seo_bots.txt
|
||||
dest_file: ip_seo_bots.txt
|
||||
type: string
|
||||
@@ -0,0 +1,11 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
name: crowdsecurity/CVE-2019-18935
|
||||
description: "Detect Telerik CVE-2019-18935 exploitation attempts"
|
||||
filter: |
|
||||
evt.Meta.log_type in ['http_access-log', 'http_error-log'] && Upper(QueryUnescape(evt.Meta.http_path)) startsWith Upper('/Telerik.Web.UI.WebResource.axd?type=rau')
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,10 @@
|
||||
type: trigger
|
||||
#debug: true
|
||||
name: crowdsecurity/CVE-2022-26134
|
||||
description: "Detect CVE-2022-26134 exploits"
|
||||
filter: "Upper(PathUnescape(evt.Meta.http_path)) contains Upper('@java.lang.Runtime@getRuntime().exec(')"
|
||||
blackhole: 1m
|
||||
groupby: "evt.Meta.source_ip"
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,10 @@
|
||||
type: trigger
|
||||
#debug: true
|
||||
name: crowdsecurity/CVE-2022-35914
|
||||
description: "Detect CVE-2022-35914 exploits"
|
||||
filter: "Upper(evt.Meta.http_path) contains Upper('/vendor/htmlawed/htmlawed/htmLawedTest.php')"
|
||||
blackhole: 1m
|
||||
groupby: "evt.Meta.source_ip"
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,18 @@
|
||||
type: trigger
|
||||
#debug: true
|
||||
name: crowdsecurity/CVE-2022-37042
|
||||
description: "Detect CVE-2022-37042 exploits"
|
||||
filter: |
|
||||
(
|
||||
Upper(evt.Meta.http_path) contains Upper('/service/extension/backup/mboximport?account-name=admin&ow=2&no-switch=1&append=1') ||
|
||||
Upper(evt.Meta.http_path) contains Upper('/service/extension/backup/mboximport?account-name=admin&account-status=1&ow=cmd')
|
||||
)
|
||||
and evt.Meta.http_status startsWith ('40') and
|
||||
Upper(evt.Meta.http_verb) == 'POST'
|
||||
|
||||
|
||||
blackhole: 2m
|
||||
groupby: "evt.Meta.source_ip"
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,11 @@
|
||||
type: trigger
|
||||
name: crowdsecurity/fortinet-cve-2022-40684
|
||||
description: "Detect cve-2022-40684 exploitation attempts"
|
||||
filter: |
|
||||
evt.Meta.log_type in ["http_access-log", "http_error-log"] and
|
||||
Upper(evt.Meta.http_path) startsWith Upper('/api/v2/cmdb/system/admin/') and Lower(evt.Parsed.http_user_agent) == 'report runner'
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,13 @@
|
||||
type: trigger
|
||||
#debug: true
|
||||
name: crowdsecurity/CVE-2022-41082
|
||||
description: "Detect CVE-2022-41082 exploits"
|
||||
filter: |
|
||||
Upper(evt.Meta.http_path) contains Upper('/autodiscover/autodiscover.json') &&
|
||||
Upper(evt.Parsed.http_args) contains Upper('powershell')
|
||||
|
||||
blackhole: 1m
|
||||
groupby: "evt.Meta.source_ip"
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,14 @@
|
||||
type: leaky
|
||||
name: crowdsecurity/CVE-2022-41697
|
||||
description: "Detect CVE-2022-41697 enumeration"
|
||||
filter: |
|
||||
Upper(evt.Meta.http_path) contains Upper('/ghost/api/admin/session') &&
|
||||
Upper(evt.Parsed.verb) == 'POST' &&
|
||||
evt.Meta.http_status == '404'
|
||||
leakspeed: "10s"
|
||||
capacity: 5
|
||||
blackhole: 1m
|
||||
groupby: "evt.Meta.source_ip"
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,17 @@
|
||||
type: trigger
|
||||
#debug: true
|
||||
name: crowdsecurity/CVE-2022-42889
|
||||
description: "Detect CVE-2022-42889 exploits (Text4Shell)"
|
||||
filter: |
|
||||
Upper(PathUnescape(evt.Meta.http_path)) contains Upper('${script:javascript:java.lang.Runtime.getRuntime().exec(')
|
||||
or
|
||||
Upper(PathUnescape(evt.Meta.http_path)) contains Upper('${script:js:java.lang.Runtime.getRuntime().exec(')
|
||||
or
|
||||
Upper(PathUnescape(evt.Meta.http_path)) contains Upper('${url:UTF-8:')
|
||||
or
|
||||
Upper(PathUnescape(evt.Meta.http_path)) contains Upper('${dns:address|')
|
||||
blackhole: 1m
|
||||
groupby: "evt.Meta.source_ip"
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,15 @@
|
||||
type: trigger
|
||||
#debug: true
|
||||
name: crowdsecurity/CVE-2022-44877
|
||||
description: "Detect CVE-2022-44877 exploits"
|
||||
filter: |
|
||||
Lower(evt.Meta.http_path) contains '/index.php' &&
|
||||
Upper(evt.Parsed.verb) == 'POST' &&
|
||||
evt.Meta.http_status == '302' &&
|
||||
Lower(evt.Parsed.http_args) matches 'login=.*[$|%24][\\(|%28].*[\\)|%29]'
|
||||
|
||||
blackhole: 1m
|
||||
groupby: "evt.Meta.source_ip"
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,29 @@
|
||||
type: leaky
|
||||
name: crowdsecurity/CVE-2022-46169-bf
|
||||
description: "Detect CVE-2022-46169 brute forcing"
|
||||
filter: |
|
||||
Upper(evt.Meta.http_path) contains Upper('/remote_agent.php') &&
|
||||
Upper(evt.Parsed.verb) == 'GET' &&
|
||||
Lower(evt.Parsed.http_args) contains 'host_id' &&
|
||||
Lower(evt.Parsed.http_args) contains 'local_data_ids'
|
||||
leakspeed: "10s"
|
||||
capacity: 5
|
||||
blackhole: 1m
|
||||
groupby: "evt.Meta.source_ip"
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
---
|
||||
type: trigger
|
||||
name: crowdsecurity/CVE-2022-46169-cmd
|
||||
description: "Detect CVE-2022-46169 cmd injection"
|
||||
filter: |
|
||||
Upper(evt.Meta.http_path) contains Upper('/remote_agent.php') &&
|
||||
Upper(evt.Parsed.verb) == 'GET' &&
|
||||
Lower(evt.Parsed.http_args) contains 'action=polldata' &&
|
||||
Lower(evt.Parsed.http_args) matches 'poller_id=.*(;|%3b)'
|
||||
blackhole: 1m
|
||||
groupby: "evt.Meta.source_ip"
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,23 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
#debug: true
|
||||
name: crowdsecurity/apache_log4j2_cve-2021-44228
|
||||
description: "Detect cve-2021-44228 exploitation attemps"
|
||||
filter: |
|
||||
evt.Meta.log_type in ["http_access-log", "http_error-log"] and
|
||||
(
|
||||
any(File("log4j2_cve_2021_44228.txt"), { Upper(evt.Meta.http_path) contains Upper(#)})
|
||||
or
|
||||
any(File("log4j2_cve_2021_44228.txt"), { Upper(evt.Parsed.http_user_agent) contains Upper(#)})
|
||||
or
|
||||
any(File("log4j2_cve_2021_44228.txt"), { Upper(evt.Parsed.http_referer) contains Upper(#)})
|
||||
)
|
||||
data:
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/web/log4j2_cve_2021_44228.txt
|
||||
dest_file: log4j2_cve_2021_44228.txt
|
||||
type: string
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,13 @@
|
||||
#contribution by @ltsich
|
||||
type: leaky
|
||||
name: crowdsecurity/dovecot-spam
|
||||
description: "detect errors on dovecot"
|
||||
debug: false
|
||||
filter: "evt.Meta.log_type == 'dovecot_logs' && evt.Meta.dovecot_login_result == 'auth_failed'"
|
||||
groupby: evt.Meta.source_ip
|
||||
capacity: 3
|
||||
leakspeed: "360s"
|
||||
blackhole: 5m
|
||||
labels:
|
||||
type: scan
|
||||
remediation: true
|
||||
@@ -0,0 +1,16 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
name: crowdsecurity/f5-big-ip-cve-2020-5902
|
||||
description: "Detect cve-2020-5902 exploitation attemps"
|
||||
filter: |
|
||||
evt.Meta.log_type in ["http_access-log", "http_error-log"] and
|
||||
(
|
||||
Upper(evt.Meta.http_path) matches Upper('/tmui/login.jsp/..;/tmui/[^.]+.jsp\\?(fileName|command|directoryPath|tabId)=')
|
||||
or
|
||||
Upper(evt.Meta.http_path) matches Upper('/tmui/login.jsp/%2E%2E;/tmui/[^.]+.jsp\\?(fileName|command|directoryPath|tabId)=')
|
||||
)
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,12 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
name: crowdsecurity/fortinet-cve-2018-13379
|
||||
description: "Detect cve-2018-13379 exploitation attemps"
|
||||
filter: |
|
||||
evt.Meta.log_type in ["http_access-log", "http_error-log"] and
|
||||
Upper(evt.Meta.http_path) contains Upper('/remote/fgt_lang?lang=/../../../..//////////dev/cmdb/sslvpn_websession')
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,14 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
name: crowdsecurity/grafana-cve-2021-43798
|
||||
description: "Detect cve-2021-43798 exploitation attemps"
|
||||
filter: |
|
||||
evt.Meta.log_type in ["http_access-log", "http_error-log"] and
|
||||
(Upper(evt.Meta.http_path) matches '/PUBLIC/PLUGINS/[^/]+/../[./]+/'
|
||||
or
|
||||
Upper(evt.Meta.http_path) matches '/PUBLIC/PLUGINS/[^/]+/%2E%2E/[%2E/]+/')
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,18 @@
|
||||
type: leaky
|
||||
#debug: true
|
||||
name: crowdsecurity/http-backdoors-attempts
|
||||
description: "Detect attempt to common backdoors"
|
||||
filter: 'evt.Meta.log_type in ["http_access-log", "http_error-log"] and any(File("backdoors.txt"), { evt.Parsed.file_name == #})'
|
||||
groupby: "evt.Meta.source_ip"
|
||||
distinct: evt.Parsed.file_name
|
||||
data:
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/web/backdoors.txt
|
||||
dest_file: backdoors.txt
|
||||
type: string
|
||||
capacity: 1
|
||||
leakspeed: 5s
|
||||
blackhole: 5m
|
||||
labels:
|
||||
service: http
|
||||
type: discovery
|
||||
remediation: true
|
||||
@@ -0,0 +1,20 @@
|
||||
type: leaky
|
||||
format: 2.0
|
||||
#debug: true
|
||||
name: crowdsecurity/http-bad-user-agent
|
||||
description: "Detect bad user-agents"
|
||||
filter: 'evt.Meta.log_type in ["http_access-log", "http_error-log"] && RegexpInFile(evt.Parsed.http_user_agent, "bad_user_agents.regex.txt")'
|
||||
data:
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/web/bad_user_agents.regex.txt
|
||||
dest_file: bad_user_agents.regex.txt
|
||||
type: regexp
|
||||
strategy: LRU
|
||||
size: 40
|
||||
ttl: 10s
|
||||
capacity: 1
|
||||
leakspeed: 1m
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: scan
|
||||
remediation: true
|
||||
@@ -0,0 +1,16 @@
|
||||
type: leaky
|
||||
name: crowdsecurity/http-crawl-non_statics
|
||||
description: "Detect aggressive crawl from single ip"
|
||||
filter: "evt.Meta.log_type in ['http_access-log', 'http_error-log'] && evt.Parsed.static_ressource == 'false' && evt.Parsed.verb in ['GET', 'HEAD']"
|
||||
distinct: "evt.Parsed.file_name"
|
||||
leakspeed: 0.5s
|
||||
capacity: 40
|
||||
#debug: true
|
||||
#this limits the memory cache (and event_sequences in output) to five events
|
||||
cache_size: 5
|
||||
groupby: "evt.Meta.source_ip + '/' + evt.Parsed.target_fqdn"
|
||||
blackhole: 1m
|
||||
labels:
|
||||
service: http
|
||||
type: crawl
|
||||
remediation: true
|
||||
@@ -0,0 +1,15 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
#debug: true
|
||||
name: crowdsecurity/http-cve-2021-41773
|
||||
description: "cve-2021-41773"
|
||||
filter: |
|
||||
evt.Meta.log_type in ["http_access-log", "http_error-log"] and
|
||||
(Upper(evt.Meta.http_path) contains "/.%2E/.%2E/"
|
||||
or
|
||||
Upper(evt.Meta.http_path) contains "/%2E%2E/%2E%2E")
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: scan
|
||||
remediation: true
|
||||
@@ -0,0 +1,14 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
#debug: true
|
||||
#this is getting funny, it's the third patch on top of cve-2021-41773
|
||||
name: crowdsecurity/http-cve-2021-42013
|
||||
description: "cve-2021-42013"
|
||||
filter: |
|
||||
evt.Meta.log_type in ["http_access-log", "http_error-log"] and
|
||||
Upper(evt.Meta.http_path) contains "/%%32%65%%32%65/"
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: scan
|
||||
remediation: true
|
||||
@@ -0,0 +1,44 @@
|
||||
# 404 scan
|
||||
type: leaky
|
||||
#debug: true
|
||||
name: crowdsecurity/http-generic-bf
|
||||
description: "Detect generic http brute force"
|
||||
filter: "evt.Meta.service == 'http' && evt.Meta.sub_type == 'auth_fail'"
|
||||
groupby: evt.Meta.source_ip
|
||||
capacity: 5
|
||||
leakspeed: "10s"
|
||||
blackhole: 1m
|
||||
labels:
|
||||
service: http
|
||||
type: bf
|
||||
remediation: true
|
||||
---
|
||||
# Generic 401 Authorization Errors
|
||||
type: leaky
|
||||
#debug: true
|
||||
name: LePresidente/http-generic-401-bf
|
||||
description: "Detect generic 401 Authorization error brute force"
|
||||
filter: "evt.Meta.log_type == 'http_access-log' && evt.Parsed.verb == 'POST' && evt.Meta.http_status == '401'"
|
||||
groupby: evt.Meta.source_ip
|
||||
capacity: 5
|
||||
leakspeed: "10s"
|
||||
blackhole: 1m
|
||||
labels:
|
||||
service: http
|
||||
type: bf
|
||||
remediation: true
|
||||
---
|
||||
# Generic 403 Forbidden (Authorization) Errors
|
||||
type: leaky
|
||||
#debug: true
|
||||
name: LePresidente/http-generic-403-bf
|
||||
description: "Detect generic 403 Forbidden (Authorization) error brute force"
|
||||
filter: "evt.Meta.log_type == 'http_access-log' && evt.Parsed.verb == 'POST' && evt.Meta.http_status == '403'"
|
||||
groupby: evt.Meta.source_ip
|
||||
capacity: 5
|
||||
leakspeed: "10s"
|
||||
blackhole: 1m
|
||||
labels:
|
||||
service: http
|
||||
type: bf
|
||||
remediation: true
|
||||
@@ -0,0 +1,10 @@
|
||||
type: trigger
|
||||
name: crowdsecurity/http-open-proxy
|
||||
description: "Detect scan for open proxy"
|
||||
#apache returns 405, nginx 400
|
||||
filter: "evt.Meta.log_type == 'http_access-log' && evt.Meta.http_status in ['400','405'] && (evt.Parsed.verb == 'CONNECT' || evt.Parsed.request matches '^http[s]?://')"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
service: http
|
||||
type: scan
|
||||
remediation: true
|
||||
@@ -0,0 +1,20 @@
|
||||
# path traversal probing
|
||||
type: leaky
|
||||
#debug: true
|
||||
name: crowdsecurity/http-path-traversal-probing
|
||||
description: "Detect path traversal attempt"
|
||||
filter: "evt.Meta.log_type in ['http_access-log', 'http_error-log'] && any(File('http_path_traversal.txt'),{evt.Meta.http_path contains #})"
|
||||
data:
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/web/path_traversal.txt
|
||||
dest_file: http_path_traversal.txt
|
||||
type: string
|
||||
groupby: "evt.Meta.source_ip"
|
||||
distinct: "evt.Meta.http_path"
|
||||
capacity: 3
|
||||
reprocess: true
|
||||
leakspeed: 10s
|
||||
blackhole: 2m
|
||||
labels:
|
||||
service: http
|
||||
type: scan
|
||||
remediation: true
|
||||
@@ -0,0 +1,16 @@
|
||||
# 404 scan
|
||||
type: leaky
|
||||
#debug: true
|
||||
name: crowdsecurity/http-probing
|
||||
description: "Detect site scanning/probing from a single ip"
|
||||
filter: "evt.Meta.service == 'http' && evt.Meta.http_status in ['404', '403', '400'] && evt.Parsed.static_ressource == 'false'"
|
||||
groupby: "evt.Meta.source_ip + '/' + evt.Parsed.target_fqdn"
|
||||
distinct: "evt.Meta.http_path"
|
||||
capacity: 10
|
||||
reprocess: true
|
||||
leakspeed: "10s"
|
||||
blackhole: 5m
|
||||
labels:
|
||||
service: http
|
||||
type: scan
|
||||
remediation: true
|
||||
@@ -0,0 +1,19 @@
|
||||
type: leaky
|
||||
format: 2.0
|
||||
#debug: true
|
||||
name: crowdsecurity/http-sensitive-files
|
||||
description: "Detect attempt to access to sensitive files (.log, .db ..) or folders (.git)"
|
||||
filter: 'evt.Meta.log_type in ["http_access-log", "http_error-log"] and any(File("sensitive_data.txt"), { evt.Parsed.request endsWith #})'
|
||||
groupby: "evt.Meta.source_ip"
|
||||
distinct: evt.Parsed.request
|
||||
data:
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/web/sensitive_data.txt
|
||||
dest_file: sensitive_data.txt
|
||||
type: string
|
||||
capacity: 4
|
||||
leakspeed: 5s
|
||||
blackhole: 5m
|
||||
labels:
|
||||
service: http
|
||||
type: discovery
|
||||
remediation: true
|
||||
@@ -0,0 +1,20 @@
|
||||
type: leaky
|
||||
#requires at least 2.0 because it's using the 'data' section and the 'Upper' expr helper
|
||||
format: 2.0
|
||||
name: crowdsecurity/http-sqli-probbing-detection
|
||||
data:
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/web/sqli_probe_patterns.txt
|
||||
dest_file: sqli_probe_patterns.txt
|
||||
type: string
|
||||
description: "A scenario that detects SQL injection probing with minimal false positives"
|
||||
filter: "evt.Meta.log_type in ['http_access-log', 'http_error-log'] && any(File('sqli_probe_patterns.txt'), {Upper(evt.Parsed.http_args) contains Upper(#)})"
|
||||
groupby: evt.Meta.source_ip
|
||||
capacity: 10
|
||||
leakspeed: 1s
|
||||
blackhole: 5m
|
||||
#low false positives approach : we require distinct payloads to avoid false positives
|
||||
distinct: evt.Parsed.http_args
|
||||
labels:
|
||||
service: http
|
||||
type: sqli_probing
|
||||
remediation: true
|
||||
@@ -0,0 +1,20 @@
|
||||
type: leaky
|
||||
#requires at least 2.0 because it's using the 'data' section and the 'Upper' expr helper
|
||||
format: 2.0
|
||||
name: crowdsecurity/http-xss-probbing
|
||||
data:
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/web/xss_probe_patterns.txt
|
||||
dest_file: xss_probe_patterns.txt
|
||||
type: string
|
||||
description: "A scenario that detects XSS probing with minimal false positives"
|
||||
filter: "evt.Meta.log_type in ['http_access-log', 'http_error-log'] && any(File('xss_probe_patterns.txt'), {Upper(evt.Parsed.http_args) contains Upper(#)})"
|
||||
groupby: evt.Meta.source_ip
|
||||
capacity: 5
|
||||
leakspeed: 1s
|
||||
blackhole: 5m
|
||||
#low false positives approach : we require distinct payloads to avoid false positives
|
||||
distinct: evt.Parsed.http_args
|
||||
labels:
|
||||
service: http
|
||||
type: xss_probing
|
||||
remediation: true
|
||||
@@ -0,0 +1,16 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
#debug: true
|
||||
name: crowdsecurity/jira_cve-2021-26086
|
||||
description: "Detect Atlassian Jira CVE-2021-26086 exploitation attemps"
|
||||
filter: |
|
||||
evt.Meta.log_type in ["http_access-log", "http_error-log"] and any(File("jira_cve_2021-26086.txt"), {Upper(evt.Meta.http_path) contains Upper(#)})
|
||||
data:
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/web/jira_cve_2021-26086.txt
|
||||
dest_file: jira_cve_2021-26086.txt
|
||||
type: string
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,13 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
name: crowdsecurity/netgear_rce
|
||||
description: "Detect Netgear RCE DGN1000/DGN220 exploitation attempts"
|
||||
filter: |
|
||||
evt.Meta.log_type in ['http_access-log', 'http_error-log'] && Lower(QueryUnescape(evt.Meta.http_path)) startsWith Lower('/setup.cgi?next_file=netgear.cfg&todo=syscmd&cmd=')
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
references:
|
||||
- "https://www.exploit-db.com/exploits/25978"
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,13 @@
|
||||
type: leaky
|
||||
#debug: true
|
||||
name: crowdsecurity/nginx-req-limit-exceeded
|
||||
description: "Detects IPs which violate nginx's user set request limit."
|
||||
filter: evt.Meta.sub_type == 'req_limit_exceeded'
|
||||
leakspeed: "60s"
|
||||
capacity: 5
|
||||
groupby: evt.Meta.source_ip
|
||||
blackhole: 5m
|
||||
labels:
|
||||
service: nginx
|
||||
type: bruteforce
|
||||
remediation: true
|
||||
@@ -0,0 +1,33 @@
|
||||
# postfix spam
|
||||
type: leaky
|
||||
name: crowdsecurity/postfix-spam
|
||||
description: "Detect spammers"
|
||||
filter: "evt.Meta.log_type_enh == 'spam-attempt' || evt.Meta.log_type == 'postfix' && evt.Meta.action == 'reject'"
|
||||
leakspeed: "10s"
|
||||
references:
|
||||
- https://en.wikipedia.org/wiki/Spamming
|
||||
capacity: 5
|
||||
groupby: evt.Meta.source_ip
|
||||
blackhole: 1m
|
||||
reprocess: false
|
||||
labels:
|
||||
service: postfix
|
||||
type: bruteforce
|
||||
remediation: true
|
||||
---
|
||||
# postfix spam
|
||||
type: trigger
|
||||
name: crowdsecurity/postscreen-rbl
|
||||
description: "Detect spammers"
|
||||
filter: "evt.Meta.service == 'postscreen' && evt.Meta.pregreet == 'PREGREET'"
|
||||
leakspeed: "10s"
|
||||
references:
|
||||
- https://en.wikipedia.org/wiki/Spamming
|
||||
groupby: evt.Meta.source_ip
|
||||
blackhole: 1m
|
||||
reprocess: false
|
||||
labels:
|
||||
service: postscreen
|
||||
type: bruteforce
|
||||
remediation: true
|
||||
|
||||
@@ -0,0 +1,14 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
name: crowdsecurity/pulse-secure-sslvpn-cve-2019-11510
|
||||
description: "Detect cve-2019-11510 exploitation attemps"
|
||||
filter: |
|
||||
evt.Meta.log_type in ["http_access-log", "http_error-log"] and
|
||||
(Upper(evt.Meta.http_path) matches Upper('/dana-na/../dana/html5acc/guacamole/../../../../../../../[^?]+\\?/dana/html5acc/guacamole/')
|
||||
or
|
||||
Upper(evt.Meta.http_path) matches Upper('/dana-na/%2E%2E/dana/html5acc/guacamole/%2E%2E/%2E%2E/%2E%2E/%2E%2E/%2E%2E/%2E%2E/%2E%2E/[^?]+\\?/dana/html5acc/guacamole/'))
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,12 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
name: crowdsecurity/spring4shell_cve-2022-22965
|
||||
description: "Detect cve-2022-22965 probing"
|
||||
filter: |
|
||||
evt.Meta.log_type in ["http_access-log", "http_error-log"] and
|
||||
(Upper(evt.Meta.http_path) contains 'CLASS.MODULE.CLASSLOADER.')
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,32 @@
|
||||
# ssh bruteforce
|
||||
type: leaky
|
||||
name: crowdsecurity/ssh-bf
|
||||
description: "Detect ssh bruteforce"
|
||||
filter: "evt.Meta.log_type == 'ssh_failed-auth'"
|
||||
leakspeed: "10s"
|
||||
references:
|
||||
- http://wikipedia.com/ssh-bf-is-bad
|
||||
capacity: 5
|
||||
groupby: evt.Meta.source_ip
|
||||
blackhole: 1m
|
||||
reprocess: true
|
||||
labels:
|
||||
service: ssh
|
||||
type: bruteforce
|
||||
remediation: true
|
||||
---
|
||||
# ssh user-enum
|
||||
type: leaky
|
||||
name: crowdsecurity/ssh-bf_user-enum
|
||||
description: "Detect ssh user enum bruteforce"
|
||||
filter: evt.Meta.log_type == 'ssh_failed-auth'
|
||||
groupby: evt.Meta.source_ip
|
||||
distinct: evt.Meta.target_user
|
||||
leakspeed: 10s
|
||||
capacity: 5
|
||||
blackhole: 1m
|
||||
labels:
|
||||
service: ssh
|
||||
type: bruteforce
|
||||
remediation: true
|
||||
|
||||
@@ -0,0 +1,32 @@
|
||||
# ssh bruteforce
|
||||
type: leaky
|
||||
name: crowdsecurity/ssh-slow-bf
|
||||
description: "Detect slow ssh bruteforce"
|
||||
filter: "evt.Meta.log_type == 'ssh_failed-auth'"
|
||||
leakspeed: "60s"
|
||||
references:
|
||||
- http://wikipedia.com/ssh-bf-is-bad
|
||||
capacity: 10
|
||||
groupby: evt.Meta.source_ip
|
||||
blackhole: 1m
|
||||
reprocess: true
|
||||
labels:
|
||||
service: ssh
|
||||
type: bruteforce
|
||||
remediation: true
|
||||
---
|
||||
# ssh user-enum
|
||||
type: leaky
|
||||
name: crowdsecurity/ssh-slow-bf_user-enum
|
||||
description: "Detect slow ssh user enum bruteforce"
|
||||
filter: evt.Meta.log_type == 'ssh_failed-auth'
|
||||
groupby: evt.Meta.source_ip
|
||||
distinct: evt.Meta.target_user
|
||||
leakspeed: 60s
|
||||
capacity: 10
|
||||
blackhole: 1m
|
||||
labels:
|
||||
service: ssh
|
||||
type: bruteforce
|
||||
remediation: true
|
||||
|
||||
@@ -0,0 +1,16 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
#debug: true
|
||||
name: crowdsecurity/thinkphp-cve-2018-20062
|
||||
description: "Detect ThinkPHP CVE-2018-20062 exploitation attemps"
|
||||
filter: |
|
||||
evt.Meta.log_type in ["http_access-log", "http_error-log"] and any(File("thinkphp_cve_2018-20062.txt"), {Upper(evt.Meta.http_path) matches Upper(#)})
|
||||
data:
|
||||
- source_url: https://raw.githubusercontent.com/crowdsecurity/sec-lists/master/web/thinkphp_cve_2018-20062.txt
|
||||
dest_file: thinkphp_cve_2018-20062.txt
|
||||
type: string
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,11 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
name: crowdsecurity/vmware-cve-2022-22954
|
||||
description: "Detect Vmware CVE-2022-22954 exploitation attempts"
|
||||
filter: |
|
||||
evt.Meta.log_type in ['http_access-log', 'http_error-log'] && Upper(QueryUnescape(evt.Meta.http_path)) startsWith Upper('/catalog-portal/ui/oauth/verify?error=&deviceUdid=${"freemarker.template.utility.Execute"?new()(')
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,11 @@
|
||||
type: trigger
|
||||
format: 2.0
|
||||
name: crowdsecurity/vmware-vcenter-vmsa-2021-0027
|
||||
description: "Detect VMSA-2021-0027 exploitation attemps"
|
||||
filter: |
|
||||
evt.Meta.log_type in ['http_access-log', 'http_error-log'] && evt.Meta.http_path matches '/ui/vcav-bootstrap/rest/vcav-providers/provider-logo\\?url=(file|http)'
|
||||
groupby: "evt.Meta.source_ip"
|
||||
blackhole: 2m
|
||||
labels:
|
||||
type: exploit
|
||||
remediation: true
|
||||
@@ -0,0 +1,12 @@
|
||||
#contributed by ltsich
|
||||
type: trigger
|
||||
name: ltsich/http-w00tw00t
|
||||
description: "detect w00tw00t"
|
||||
debug: false
|
||||
filter: "evt.Meta.log_type == 'http_access-log' && evt.Parsed.file_name contains 'w00tw00t.at.ISC.SANS.DFind'"
|
||||
groupby: evt.Meta.source_ip
|
||||
blackhole: 5m
|
||||
labels:
|
||||
service: http
|
||||
type: scan
|
||||
remediation: true
|
||||
Reference in New Issue
Block a user