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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


Home >> Browse Vulnerability Assessment Database >> CGI abuses >> SquirrelMail session_expired_post Arbitrary Variables Overwriting Vulnerability


Vulnerability Assessment Details

SquirrelMail session_expired_post Arbitrary Variables Overwriting Vulnerability

Vulnerability Assessment Summary
Tries to overwrite a variable SquirrelMail

Detailed Explanation for this Vulnerability Assessment

Summary :

The remote webmail application suffers from a data modification
vulnerability.

Description :

The installed version of SquirrelMail permits for restoring expired
sessions in an unsafe manner. Using a specially-crafted expired
session, a user can leverage this issue to take control of arbitrary
variables used by the affected application, which can lead to other
attacks against the system, such as reading or writing of arbitrary
files on the system.

See also :

http://www.gulftech.org/?node=research&article_id=00108-08112006
http://www.squirrelmail.org/security/issue/2006-08-11
http://archives.neohapsis.com/archives/bugtraq/2006-08/0241.html

Solution :

Apply the patch referenced in the vendor advisory above or upgrade to
SquirrelMail version 1.4.8 or later.

Network Security Threat Level:

Medium / CVSS Base Score : 4.7
(AV:R/AC:L/Au:NR/C:P/I:P/A:N/B:N)

Networks Security ID: 19486

Vulnerability Assessment Copyright: This script is Copyright (C) 2006 Tenable Network Security

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