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TITLE:
Serv-U "MKD" Directory Traversal Vulnerability

SECUNIA ADVISORY ID:
SA34329

VERIFY ADVISORY:
https://secunia.com/advisories/34329/

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:
https://milw0rm.com/exploits/8211

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About:
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vulnerabilities.

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https://secunia.com/advisories/about_secunia_advisories/


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