Executive Summary

Summary
Title strongswan security update
Informations
Name DSA-2665 First vendor Publication 2013-04-30
Vendor Debian Last vendor Modification 2013-04-30
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Kevin Wojtysiak discovered a vulnerability in strongSwan, an IPsec based VPN solution.

When using the openssl plugin for ECDSA based authentication, an empty, zeroed or otherwise invalid signature is handled as a legitimate one. An attacker could use a forged signature to authenticate like a legitimate user and gain access to the VPN (and everything protected by this).

While the issue looks like CVE-2012-2388 (RSA signature based authentication bypass), it is unrelated.

For the stable distribution (squeeze), this problem has been fixed in version 4.4.1-5.3.

For the testing distribution (wheezy), this problem has been fixed in version 4.5.2-1.5+deb7u1.

For the unstable distribution (sid), this problem has been fixed in version 4.6.4-7.

We recommend that you upgrade your strongswan packages.

Original Source

Url : http://www.debian.org/security/2013/dsa-2665

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-287 Improper Authentication

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:18177
 
Oval ID: oval:org.mitre.oval:def:18177
Title: DSA-2665-1 strongswan - authentication bypass
Description: Kevin Wojtysiak discovered a vulnerability in strongSwan, an IPsec based VPN solution.
Family: unix Class: patch
Reference(s): DSA-2665-1
CVE-2013-2944
CVE-2012-2388
Version: 8
Platform(s): Debian GNU/Linux 6.0
Debian GNU/Linux 7
Debian GNU/kFreeBSD 6.0
Debian GNU/kFreeBSD 7
Product(s): strongswan
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:19671
 
Oval ID: oval:org.mitre.oval:def:19671
Title: DSA-2483-1 strongswan - authentication bypass
Description: An authentication bypass issue was discovered by the Codenomicon CROSS project in strongSwan, an IPsec-based VPN solution. When using RSA-based setups, a missing check in the gmp plugin could allow an attacker presenting a forged signature to successfully authenticate against a strongSwan responder.
Family: unix Class: patch
Reference(s): DSA-2483-1
CVE-2012-2388
Version: 5
Platform(s): Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
Product(s): strongswan
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:25008
 
Oval ID: oval:org.mitre.oval:def:25008
Title: SUSE-SU-2013:1237-2 -- Security update for strongswan
Description: This update fixes the ECDSA signature vulnerability in strongswan. CVE-2013-2944 was assigned to this issue. Security Issue reference: * CVE-2013-2944 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2944 >
Family: unix Class: patch
Reference(s): SUSE-SU-2013:1237-2
CVE-2013-2944
Version: 3
Platform(s): SUSE Linux Enterprise Server 10
Product(s): strongswan
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:25881
 
Oval ID: oval:org.mitre.oval:def:25881
Title: SUSE-SU-2013:1237-3 -- Security update for strongswan
Description: This update fixes the ECDSA signature vulnerability in strongswan. CVE-2013-2944 was assigned to this issue.
Family: unix Class: patch
Reference(s): SUSE-SU-2013:1237-3
CVE-2013-2944
Version: 3
Platform(s): SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 11
Product(s): strongswan
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:25882
 
Oval ID: oval:org.mitre.oval:def:25882
Title: SUSE-SU-2013:1237-1 -- Security update for strongswan
Description: This update fixes the ECDSA signature vulnerability in strongswan. CVE-2013-2944 has been assigned to this issue. Security Issue reference: * CVE-2013-2944 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2944 >
Family: unix Class: patch
Reference(s): SUSE-SU-2013:1237-1
CVE-2013-2944
Version: 3
Platform(s): SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 11
Product(s): strongswan
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 39

OpenVAS Exploits

Date Description
2012-12-13 Name : SuSE Update for update openSUSE-SU-2012:0691-1 (update)
File : nvt/gb_suse_2012_0691_1.nasl
2012-08-30 Name : Fedora Update for strongswan FEDORA-2012-8815
File : nvt/gb_fedora_2012_8815_strongswan_fc17.nasl
2012-06-11 Name : Fedora Update for strongswan FEDORA-2012-8821
File : nvt/gb_fedora_2012_8821_strongswan_fc16.nasl
2012-05-31 Name : Debian Security Advisory DSA 2483-1 (strongswan)
File : nvt/deb_2483_1.nasl

Nessus® Vulnerability Scanner

Date Description
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2012-309.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2013-412.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2013-413.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2013-414.nasl - Type : ACT_GATHER_INFO
2013-09-02 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201309-02.nasl - Type : ACT_GATHER_INFO
2013-08-02 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_strongswan-130701.nasl - Type : ACT_GATHER_INFO
2013-08-02 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_strongswan-130702.nasl - Type : ACT_GATHER_INFO
2013-07-25 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_strongswan-8546.nasl - Type : ACT_GATHER_INFO
2013-07-24 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_strongswan-130416.nasl - Type : ACT_GATHER_INFO
2013-05-04 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_6ff570cbb41811e2b27920cf30e32f6d.nasl - Type : ACT_GATHER_INFO
2013-05-01 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2665.nasl - Type : ACT_GATHER_INFO
2013-01-25 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_strongswan-120523.nasl - Type : ACT_GATHER_INFO
2012-06-29 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2483.nasl - Type : ACT_GATHER_INFO
2012-06-11 Name : The remote Fedora host is missing a security update.
File : fedora_2012-8815.nasl - Type : ACT_GATHER_INFO
2012-06-11 Name : The remote Fedora host is missing a security update.
File : fedora_2012-8821.nasl - Type : ACT_GATHER_INFO
2012-06-04 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_strongswan-8138.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2014-02-17 11:31:48
  • Multiple Updates
2013-05-02 21:20:21
  • Multiple Updates
2013-04-30 17:18:26
  • First insertion