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Test ID:1.3.6.1.4.1.25623.1.0.702770
Category:Debian Local Security Checks
Title:Debian Security Advisory DSA 2770-1 (torque - authentication bypass)
Summary:John Fitzpatrick of MWR InfoSecurity discovered an authentication bypass;vulnerability in torque, a PBS-derived batch processing queueing system.;;The torque authentication model revolves around the use of privileged;ports. If a request is not made from a privileged port then it is;assumed not to be trusted or authenticated. It was found that pbs_mom;does not perform a check to ensure that connections are established;from a privileged port.;;A user who can run jobs or login to a node running pbs_server or pbs_mom;can exploit this vulnerability to remotely execute code as root on the;cluster by submitting a command directly to a pbs_mom daemon;to queue and run a job.
Description:Summary:
John Fitzpatrick of MWR InfoSecurity discovered an authentication bypass
vulnerability in torque, a PBS-derived batch processing queueing system.

The torque authentication model revolves around the use of privileged
ports. If a request is not made from a privileged port then it is
assumed not to be trusted or authenticated. It was found that pbs_mom
does not perform a check to ensure that connections are established
from a privileged port.

A user who can run jobs or login to a node running pbs_server or pbs_mom
can exploit this vulnerability to remotely execute code as root on the
cluster by submitting a command directly to a pbs_mom daemon
to queue and run a job.

Affected Software/OS:
torque on Debian Linux

Solution:
For the oldstable distribution (squeeze), this problem has been fixed in
version 2.4.8+dfsg-9squeeze2.

For the stable distribution (wheezy), this problem has been fixed in
version 2.4.16+dfsg-1+deb7u1.

For the unstable distribution (sid), this problem will be fixed soon.

We recommend that you upgrade your torque packages.

CVSS Score:
9.0

CVSS Vector:
AV:N/AC:L/Au:S/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2013-4319
Debian Security Information: DSA-2770 (Google Search)
http://www.debian.org/security/2013/dsa-2770
http://www.openwall.com/lists/oss-security/2013/09/09/4
http://www.openwall.com/lists/oss-security/2013/09/09/11
http://www.supercluster.org/pipermail/torqueusers/2013-September/016098.html
CopyrightCopyright (C) 2013 Greenbone Networks GmbH http://greenbone.net

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