Debian DSA-2770-1 : torque - authentication bypass

high Nessus Plugin ID 70354

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Synopsis

The remote Debian host is missing a security-related update.

Description

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.

Solution

Upgrade the torque packages.

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.

Plugin Details

Severity: High

ID: 70354

File Name: debian_DSA-2770.nasl

Version: 1.8

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/10/2013

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:torque, cpe:/o:debian:debian_linux:6.0, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/9/2013

Reference Information

CVE: CVE-2013-4319

BID: 62273

DSA: 2770

Detections

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