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Discuz! "cdb_auth" SQL Injection Vulnerability
Secunia Advisory: SA22534
Release Date: 2006-10-26
Last Update: 2006-11-29
Popularity: 4,558 views

Critical:
Moderately critical
Impact: Manipulation of data
Exposure of sensitive information
Where: From remote
Solution Status: Unpatched

Software:Crossday Discuz! Board 4.x
Discuz! GBK 5.x

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CVE reference:CVE-2006-5561


Description:
rgod has reported a vulnerability in Discuz! GBK and Crossday Discuz! Board, which can be exploited by malicious people to conduct SQL injection attacks.

Input passed to the "cdb_auth" cookie in admincp.php is not properly sanitised before being used in a SQL query. This can be exploited to manipulate SQL queries by injecting arbitrary PHP code.

Successful exploitation may allow retrieval of administrator usernames and password hashes.

The vulnerability is reported in versions 5.0.0 and 4.1.0. Other versions may also be affected.

Solution:
Edit the source code to ensure that input is properly sanitised.

Provided and/or discovered by:
rgod

Changelog:
2006-10-31: Added CVE reference.
2006-11-29: Updated Description with more vulnerable versions and information about successful exploitation.


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