Detections
Analytics
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
Plugin Details
Severity: Medium
ID: 43738
File Name: centos_RHSA-2009-0402.nasl
Version: 1.17
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 1/6/2010
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: 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, cpe:/o:centos:centos:5, p-cpe:/a:centos:centos:openswan-doc
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