bugtraq - Acuity CMS 2.6.x <= Path Traversal Arbitrary File Access

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Date: Sun, 20 May 2012 17:47:35 +0800
From: YGN Ethical Hacker Group <lists@...g.net>
To: full-disclosure <full-disclosure@...ts.grok.org.uk>,
  bugtraq <bugtraq@...urityfocus.com>, secalert@...urityreason.com,
  bugs@...uritytracker.com, vuln <vuln@...unia.com>, vuln@...urity.nnov.ru,
  news@...uriteam.com, moderators@...db.org,
  submissions@...ketstormsecurity.org, submit@...ecurity.com,
  oss-security@...ts.openwall.com
Subject: Acuity CMS 2.6.x <= Path Traversal Arbitrary File Access

1. OVERVIEW

Acuity CMS 2.6.x (ASP-based) versions are vulnerable to Path Traversal.

2. BACKGROUND

Acuity CMS is a powerful but simple, extremely easy to use, low
priced, easy to deploy content management system. It is a leader in
its price and feature class.

3. VULNERABILITY DESCRIPTION

The issue is due to the script, /admin/file_manager/browse.asp, not
properly sanitizing user input, specifically directory traversal style
attacks (e.g., ../../) supplied via the 'path' parameter. It would
allow the attacker to access arbitrary files outside of web root
directory.

4. VERSIONS AFFECTED

Tested with version 2.6.2.

5. PROOF-OF-CONCEPT/EXPLOIT

http://localhost/admin/file_manager/browse.asp?field=&form=&path=../../

6. SOLUTION

The Acunity CMS is no longer in active development.
It is recommended to user another CMS in active development and support.

7. VENDOR

The Collective
http://www.thecollective.com.au/

8. CREDIT

Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar.

9. DISCLOSURE TIME-LINE

2012-05-20: vulnerability disclosed

10. REFERENCES

Original Advisory URL:
http://yehg.net/lab/pr0js/advisories/%5Bacuity_cms2.6%20x_(asp)%5D_path_traversal

#yehg [2012-05-20]