CentOS 5 : openswan (CESA-2009:0402)

medium Nessus Plugin ID 43738

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Synopsis

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

Description

Updated openswan packages that fix various security issues are now available for Red Hat Enterprise Linux 5.

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

Openswan is a free implementation of Internet Protocol Security (IPsec) and Internet Key Exchange (IKE). IPsec uses strong cryptography to provide both authentication and encryption services.
These services allow you to build secure tunnels through untrusted networks. Everything passing through the untrusted network is encrypted by the IPsec gateway machine, and decrypted by the gateway at the other end of the tunnel. The resulting tunnel is a virtual private network (VPN).

Gerd v. Egidy discovered a flaw in the Dead Peer Detection (DPD) in Openswan's pluto IKE daemon. A remote attacker could use a malicious DPD packet to crash the pluto daemon. (CVE-2009-0790)

It was discovered that Openswan's livetest script created temporary files in an insecure manner. A local attacker could use this flaw to overwrite arbitrary files owned by the user running the script.
(CVE-2008-4190)

Note: The livetest script is an incomplete feature and was not automatically executed by any other script distributed with Openswan, or intended to be used at all, as was documented in its man page. In these updated packages, the script only prints an informative message and exits immediately when run.

All users of openswan are advised to upgrade to these updated packages, which contain backported patches to correct these issues.
After installing this update, the ipsec service will be restarted automatically.

Solution

Update the affected openswan packages.

See Also

http://www.nessus.org/u?6f78abf9

http://www.nessus.org/u?567d2598

Plugin Details

Severity: Medium

ID: 43738

File Name: centos_RHSA-2009-0402.nasl

Version: 1.17

Type: local

Agent: unix

Published: 1/6/2010

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:openswan, p-cpe:/a:centos:centos:openswan-doc, cpe:/o:centos:centos:5

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/9/2009

Vulnerability Publication Date: 9/24/2008

Reference Information

CVE: CVE-2008-4190, CVE-2009-0790

BID: 31243

CWE: 20, 59

RHSA: 2009:0402