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