GLSA-200501-39 : SquirrelMail: Multiple vulnerabilities

This script is Copyright (C) 2005-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-200501-39
(SquirrelMail: Multiple vulnerabilities)

SquirrelMail fails to properly sanitize certain strings when
decoding specially crafted strings, which can lead to PHP file
inclusion and XSS.
Insufficient checking of incoming URLs
in prefs.php (CAN-2005-0075) and in webmail.php (CAN-2005-0103).
Insufficient escaping of integers in webmail.php
(CAN-2005-0104).

Impact :

By sending a specially crafted URL, an attacker can execute
arbitrary code from the local system with the permissions of the web
server. Furthermore by enticing a user to load a specially crafted URL,
it is possible to display arbitrary remote web pages in Squirrelmail's
frameset and execute arbitrary scripts running in the context of the
victim's browser. This could lead to a compromise of the user's webmail
account, cookie theft, etc.

Workaround :

The arbitrary code execution is only possible with
'register_globals' set to 'On'. Gentoo ships PHP with
'register_globals' set to 'Off' by default. There are no known
workarounds for the other issues at this time.

See also :

http://sourceforge.net/mailarchive/message.php?msg_id=10628451
http://www.gentoo.org/security/en/glsa/glsa-200501-39.xml

Solution :

All SquirrelMail users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=mail-client/squirrelmail-1.4.4'
Note: Users with the vhosts USE flag set should manually use
webapp-config to finalize the update.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 16430 (gentoo_GLSA-200501-39.nasl)

Bugtraq ID:

CVE ID: CVE-2005-0075
CVE-2005-0103
CVE-2005-0104