Bug 828360 (CVE-2012-2388) - CVE-2012-2388 strongswan: authentication bypass due to RSA signature verification flaw
Summary: CVE-2012-2388 strongswan: authentication bypass due to RSA signature verifica...
Alias: CVE-2012-2388
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 828361 828362
TreeView+ depends on / blocked
Reported: 2012-06-04 17:12 UTC by Vincent Danen
Modified: 2019-09-29 12:53 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2012-07-10 01:11:33 UTC

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Description Vincent Danen 2012-06-04 17:12:24 UTC
strongSwan 4.6.4 was released [1] to fix a security flaw in 4.2.0 through to 4.6.3.  If the gmp plugin were used for RSA signature verification with IKEv1 or IKEv2, an empty or zeroed signature was handled as a legitimate one.  A connection definition using RSA authentication is required to exploit this flaw, and an attacker presenting a forged signature and/or certificate could authenticate as any legitimate user.

The fix is present in version 4.6.4 or as a patch [2].

[1] http://www.strongswan.org/blog/2012/05/31/strongswan-4.6.4-released-(cve-2012-2388).html
[2] http://download.strongswan.org/patches/09_gmp_rsa_signature_patch/strongswan-4.2.0-4.6.3_gmp_rsa_signature.patch

Comment 1 Vincent Danen 2012-06-04 17:15:00 UTC
Created strongswan tracking bugs for this issue

Affects: fedora-all [bug 828361]
Affects: epel-6 [bug 828362]

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