oCERT Advisories

#2010-003 Free Simple CMS path sanitization errors

Description:

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.

CVE: CVE-2010-3307

Timeline:

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/67239

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