GLSA-200704-03 : OpenAFS: Privilege escalation

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-200704-03
(OpenAFS: Privilege escalation)

Benjamin Bennett discovered that the OpenAFS client contains a design
flaw where cache managers do not use authenticated server connections
when performing actions not requested by a user.

Impact :

If setuid is enabled on the client cells, an attacker can supply a fake
FetchStatus reply that sets setuid and root ownership of a file being
executed. This could provide root access on the client. Remote attacks
may be possible if an attacker can entice a user to execute a known
file. Note that setuid is enabled by default in versions of OpenAFS
prior to 1.4.4.

Workaround :

Disable the setuid functionality on all client cells. This is now the
default configuration in OpenAFS.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200704-03.xml

Solution :

All OpenAFS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-fs/openafs-1.4.4'

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: 24936 (gentoo_GLSA-200704-03.nasl)

Bugtraq ID:

CVE ID: CVE-2007-1507