bugtraq - Secunia Research: Pulse CMS Arbitrary File Upload Vulnerability

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Message-Id: <201004090807.o3987RhD017625@CA-IX-1.intnet>
Date: Fri, 9 Apr 2010 10:07:27 +0200
From: Secunia Research <remove-vuln@...unia.com>
To: bugtraq@...urityfocus.com
Subject: Secunia Research: Pulse CMS Arbitrary File Upload Vulnerability

====================================================================== 

                     Secunia Research 08/04/2010

         - Pulse CMS Arbitrary File Upload Vulnerability -

====================================================================== 
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

====================================================================== 
1) Affected Software 

* Pulse CMS basic version 1.2.2 and 1.2.3

NOTE: Other versions may also be affected.

====================================================================== 
2) Severity 

Rating: Moderately critical
Impact: System access
Where:  From remote

====================================================================== 
3) Vendor's Description of Software 

"Pulse is a simple CMS designed for small websites. It enables you to
take an existing site and add content management in five minutes.".

Product Link:
http://pulsecms.com/

====================================================================== 
4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Pulse CMS, which 
can be exploited by malicious users to compromise a vulnerable system.

An error in the validation of uploaded image files can be exploited to
upload files with an arbitrary extension to a folder within the web
root. This can be exploited to upload and execute arbitrary PHP code.

Successful exploitation requires authentication.

====================================================================== 
5) Solution 

Partially fixed in version 1.2.4.

It can still be exploited to execute arbitrary PHP code by uploading 
a malicious PHP script with multiple extensions (e.g. "shell.php.gif")
if Apache is not configured to handle the mime-type for media files 
with an e.g. "gif" extension.

====================================================================== 
6) Time Table 
19/03/2010 - Vendor notified.
19/03/2010 - Vendor response.
08/04/2010 - Public disclosure.

====================================================================== 
7) Credits 

Discovered by Secunia Research.

====================================================================== 
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2010-0993 for the vulnerability.

====================================================================== 
9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/advisories/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

====================================================================== 
10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2010-47/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================