GLSA-200708-08 : SquirrelMail G/PGP plugin: Arbitrary code execution

This script is Copyright (C) 2007-2014 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-200708-08
(SquirrelMail G/PGP plugin: Arbitrary code execution)

The functions deletekey(), gpg_check_sign_pgp_mime() and gpg_recv_key()
used in the SquirrelMail G/PGP encryption plugin do not properly escape
user-supplied data.

Impact :

An authenticated user could use the plugin to execute arbitrary code on
the server, or a remote attacker could send a specially crafted e-mail
to a SquirrelMail user, possibly leading to the execution of arbitrary
code with the privileges of the user running the underlying web server.
Note that the G/PGP plugin is disabled by default.

Workaround :

Enter the SquirrelMail configuration directory
(/usr/share/webapps/squirrelmail/version/htdocs/config), then execute
the conf.pl script. Select the plugins menu, then select the gpg plugin
item number in the 'Installed Plugins' list to disable it. Press S to
save your changes, then Q to quit.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200708-08.xml

Solution :

All SquirrelMail users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=mail-client/squirrelmail-1.4.10a-r2'

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 25873 (gentoo_GLSA-200708-08.nasl)

Bugtraq ID:

CVE ID: CVE-2005-1924
CVE-2006-4169