CentOS 5 : openssh (CESA-2009:1470)

medium Nessus Plugin ID 43797

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Synopsis

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

Description

Updated openssh packages that fix a security issue are now available for Red Hat Enterprise Linux 5.

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 Red Hat specific patch used in the openssh packages as shipped in Red Hat Enterprise Linux 5.4 (RHSA-2009:1287) loosened certain ownership requirements for directories used as arguments for the ChrootDirectory configuration options. A malicious user that also has or previously had non-chroot shell access to a system could possibly use this flaw to escalate their privileges and run commands as any system user. (CVE-2009-2904)

All OpenSSH users are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing this update, the OpenSSH server daemon (sshd) will be restarted automatically.

Solution

Update the affected openssh packages.

See Also

http://www.nessus.org/u?d8e37fee

http://www.nessus.org/u?7f9e45f0

Plugin Details

Severity: Medium

ID: 43797

File Name: centos_RHSA-2009-1470.nasl

Version: 1.13

Type: local

Agent: unix

Published: 1/6/2010

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.1

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:openssh, p-cpe:/a:centos:centos:openssh-askpass, p-cpe:/a:centos:centos:openssh-clients, p-cpe:/a:centos:centos:openssh-server, cpe:/o:centos:centos:5

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/30/2009

Vulnerability Publication Date: 10/1/2009

Reference Information

CVE: CVE-2009-2904

CWE: 16

RHSA: 2009:1470