[oCERT-2010-003] Free Simple CMS path sanitization errors

Type securityvulns
Reporter Securityvulns
Modified 2010-09-20T00:00:00


2010-003 Free Simple CMS path sanitization errors


Free Simple CMS, an open source content management system, suffers from remote file inclusion vulnerabilities.

Insufficient path sanitization on several query string parameters leads to inclusion of arbitrary files from remote sources, this could be exploited to execute arbitrary command or code.

The vulnerable URLs are similar to the one referenced in a previously disclosed file inclusion vulnerability affecting the same version of the software (see References). It has been discovered that 'body', 'footer', 'header', 'menu_left', 'menu_right' are also vulnerable to remote file inclusion.

Affected version:

Free Simple CMS <= 1.0

Fixed version:

Free Simple CMS, N/A

Credit: vulnerability report received from Evan Pitstick, SecureWorks.



2010-08-20: vulnerability report received 2010-08-22: contacted freesimplecms maintainer 2010-08-24: maintainer replies, vulnerability report is provided 2010-09-13: due to lack of feedback oCERT asks reporter to disclose the issue 2010-09-14: reporter agrees to disclosure 2010-09-17: oCERT advisory published

References: http://packetstormsecurity.org/1008-exploits/freesimplesoftware-rfi.txt http://secunia.com/advisories/41001 http://osvdb.org/67329

Permalink: http://www.ocert.org/advisories/ocert-2010-003.html

-- Andrea Barisani | Founder & Project Coordinator oCERT | Open Source Computer Emergency Response Team

<lcars@ocert.org> http://www.ocert.org 0x864C9B9E 0A76 074A 02CD E989 CE7F AC3F DA47 578E 864C 9B9E "Pluralitas non est ponenda sine necessitate"