MemHT Portal Avatar Upload Arbitrary File Upload Vulnerability

Bugtraq ID:	33424
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Jan 25 2009 12:00AM
Updated:	Jan 30 2009 09:29PM
Credit:	StAkeR
Vulnerable:	MemHT Portal MemHT Portal 4.0.1 MemHT Portal MemHT Portal 3.9 MemHT Portal MemHT Portal 4.0
Not Vulnerable:

MemHT Portal Avatar Upload Arbitrary File Upload Vulnerability

MemHT Portal is prone to a vulnerability that lets attackers upload arbitrary files. The issue occurs because the application fails to adequately sanitize user-supplied input.

An attacker can exploit this vulnerability to upload arbitrary code and execute it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible.

MemHT Portal 4.0.1 and prior versions are vulnerable.

MemHT Portal Avatar Upload Arbitrary File Upload Vulnerability

Attackers may exploit this issue via a browser.

The following exploit is available:

• /data/vulnerabilities/exploits/33424.pl

MemHT Portal Avatar Upload Arbitrary File Upload Vulnerability

Solution:
The vendor has released a patch that will disable the affected functionality; please see the references for more information.


MemHT Portal MemHT Portal 4.0.1

• MemHT Portal FP401.rar
  http://www.memht.com/pages/forum/attachment.php?id=17756

MemHT Portal Avatar Upload Arbitrary File Upload Vulnerability

References:

• MemHT Portal Homepage (MemHT Portal)
  
• Small fix: 4.0.1 (MemHT)