Debian DSA-3550-1 : openssh - security update

high Nessus Plugin ID 90550

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Synopsis

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

Description

Shayan Sadigh discovered a vulnerability in OpenSSH: If PAM support is enabled and the sshd PAM configuration is configured to read userspecified environment variables and the 'UseLogin' option is enabled, a local user may escalate her privileges to root.

In Debian 'UseLogin' is not enabled by default.

Solution

Upgrade the openssh packages.

For the oldstable distribution (wheezy), this problem has been fixed in version 6.0p1-4+deb7u4.

For the stable distribution (jessie), this problem has been fixed in version 6.7p1-5+deb8u2.

Plugin Details

Severity: High

ID: 90550

File Name: debian_DSA-3550.nasl

Version: 2.8

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/18/2016

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:openssh, cpe:/o:debian:debian_linux:7.0, cpe:/o:debian:debian_linux:8.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/15/2016

Reference Information

CVE: CVE-2015-8325

DSA: 3550

Detections

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