Amazon Linux AMI : openswan (ALAS-2013-192)

medium Nessus Plugin ID 69750

Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

A buffer overflow flaw was found in Openswan. If Opportunistic Encryption were enabled ('oe=yes' in '/etc/ipsec.conf') and an RSA key configured, an attacker able to cause a system to perform a DNS lookup for an attacker-controlled domain containing malicious records (such as by sending an email that triggers a DKIM or SPF DNS record lookup) could cause Openswan's pluto IKE daemon to crash or, potentially, execute arbitrary code with root privileges. With 'oe=yes' but no RSA key configured, the issue can only be triggered by attackers on the local network who can control the reverse DNS entry of the target system. Opportunistic Encryption is disabled by default.
(CVE-2013-2053)

Solution

Run 'yum update openswan' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2013-192.html

Plugin Details

Severity: Medium

ID: 69750

File Name: ala_ALAS-2013-192.nasl

Version: 1.5

Type: local

Agent: unix

Published: 9/4/2013

Updated: 4/18/2018

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.8

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openswan, p-cpe:/a:amazon:linux:openswan-debuginfo, p-cpe:/a:amazon:linux:openswan-doc, cpe:/o:amazon:linux

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

Patch Publication Date: 5/24/2013

Reference Information

CVE: CVE-2013-2053

ALAS: 2013-192

RHSA: 2013:0827