CentOS 4 : openssh (CESA-2007:0703)

medium Nessus Plugin ID 67053

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Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated openssh packages that fix two security issues and various bugs are now available.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

OpenSSH is OpenBSD's SSH (Secure SHell) protocol implementation. These packages include the core files necessary for both the OpenSSH client and server.

A flaw was found in the way the ssh server wrote account names to the audit subsystem. An attacker could inject strings containing parts of audit messages which could possibly mislead or confuse audit log parsing tools. (CVE-2007-3102)

A flaw was found in the way the OpenSSH server processes GSSAPI authentication requests. When GSSAPI authentication was enabled in OpenSSH server, a remote attacker may have been able to determine if a username is valid. (CVE-2006-5052)

The following bugs were also fixed :

* the ssh daemon did not generate audit messages when an ssh session was closed.

* GSSAPI authentication sometimes failed on clusters using DNS or load-balancing.

* the sftp client and server leaked small amounts of memory in some cases.

* the sftp client didn't properly exit and return non-zero status in batch mode when the destination disk drive was full.

* when restarting the ssh daemon with the initscript, the ssh daemon was sometimes not restarted successfully because the old running ssh daemon was not properly killed.

* with challenge/response authentication enabled, the pam sub-process was not terminated if the user authentication timed out.

All users of openssh should upgrade to these updated packages, which contain patches to correct these issues.

Solution

Update the affected openssh packages.

Plugin Details

Severity: Medium

ID: 67053

File Name: centos_RHSA-2007-0703.nasl

Version: 1.8

Type: local

Agent: unix

Family: CentOS Local Security Checks

Published: 6/29/2013

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.7

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:openssh-server, p-cpe:/a:centos:centos:openssh-clients, p-cpe:/a:centos:centos:openssh-askpass, p-cpe:/a:centos:centos:openssh, cpe:/o:centos:centos:4, p-cpe:/a:centos:centos:openssh-askpass-gnome

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 11/15/2007

Vulnerability Publication Date: 9/27/2006

Reference Information

CVE: CVE-2006-5052, CVE-2007-3102

BID: 20245

RHSA: 2007:0703

Detections

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