Exponent CMS image upload PHP code execution
| exponent-image-code-execution (23113) |  High Risk |
Description:
Exponent could allow execution of arbitrary PHP code, caused by improper validation of user uploaded images. A remote attacker with the permissions to upload image files could exploit this vulnerability to execute arbitrary code on the server with privileges of the Web server process.
Platforms Affected:
- Exponent, Exponent CMS 0.96.3 and prior
Remedy:
Upgrade to the latest version of Exponent (0.96.4 or later) available from the SourceForge.net Downloads Web site. See References.
Consequences:
Gain Access
References:
- BugTraq Mailing List, Sat Nov 19 2005 - 11:21:18 CST, [security - exponentcms] at http://archives.neohapsis.com/archives/bugtraq/2005-11/0243.html.
- Exponent: An Open Source Content Management System, Exponent Open Source Content Management System at http://www.exponentcms.org/index.php?section=1.
- SourceForge.net, Exponent Content Management System at http://sourceforge.net/project/showfiles.php?group_id=118524.
- BID-15391: Exponent CMS Image Upload Arbitrary Script Execution Vulnerability
- BID-15503: Exponent Content Management System Multiple Improper File Permission Vulnerabilities
- CVE-2005-3765: Exponent CMS 0.96.3 and later versions performs a chmod on uploaded files to give them execute permissions, which allows remote attackers to execute arbitrary code.
- CVE-2005-3767: Exponent CMS 0.96.3 and later versions does not properly restrict the types of uploaded files, which allows remote attackers to upload and execute PHP files.
- SA17505: Exponent CMS Multiple Vulnerabilities
- SA17655: Exponent CMS image gallery Module Script Insertion and Full Path Disclosure
Reported:
Nov 11, 2005
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