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Insecure Library Loading
Not critical

Serv-U "MKD" Directory Traversal Vulnerability

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Release Date:  2009-03-17    Last Update:  2009-03-23    Views:  3,372

Secunia Advisory SA34329

Where:

From remote

Impact:

Security Bypass

Solution Status:

Unpatched

CVE Reference(s):

Description


A vulnerability has been discovered in Serv-U, which can be exploited by malicious users to bypass certain security restrictions.

The vulnerability is caused due to an error when processing "MKD" commands. This can be exploited to create directories residing outside a given user's home directory via directory traversal attacks (e.g "MKD \..\..\[NEW DIRECTORY]").

The vulnerability is confirmed in version 7.4.0.1. Other versions may also be affected.


Solution:
Restrict access to trusted users only.

Provided and/or discovered by:
Jonathan Salwan

Original Advisory:
http://milw0rm.com/exploits/8211

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Serv-U "MKD" Directory Traversal Vulnerability

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