GLSA-200410-26 : socat: Format string vulnerability

This script is Copyright (C) 2004-2014 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-200410-26
(socat: Format string vulnerability)

socat contains a syslog() based format string vulnerablility in the
'_msg()' function of 'error.c'. Exploitation of this bug is only
possible when socat is run with the '-ly' option, causing it to log
messages to syslog.

Impact :

Remote exploitation is possible when socat is used as a HTTP proxy
client and connects to a malicious server. Local privilege escalation
can be achieved when socat listens on a UNIX domain socket. Potential
execution of arbitrary code with the privileges of the socat process is
possible with both local and remote exploitations.

Workaround :

Disable logging to syslog by not using the '-ly' option when starting
socat.

See also :

http://www.dest-unreach.org/socat/advisory/socat-adv-1.html
http://www.gentoo.org/security/en/glsa/glsa-200410-26.xml

Solution :

All socat users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-misc/socat-1.4.0.3'

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 15568 (gentoo_GLSA-200410-26.nasl)

Bugtraq ID:

CVE ID: CVE-2004-1484