strongSwan up to 4.6.3 improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability has been found in strongSwan (Network Encryption Software) and classified as critical. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The GMP Plugin in strongSwan 4.2.0 through 4.6.3 allows remote attackers to bypass authentication via a (1) empty or (2) zeroed RSA signature, aka "RSA signature verification vulnerability."

The weakness was disclosed 06/27/2012 with Debian (Website). The advisory is shared for download at This vulnerability was named CVE-2012-2388 since 04/19/2012. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 74642 (openSUSE Security Update : strongswan (openSUSE-SU-2012:0691-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (76013) and Tenable (74642). The entries VDB-124484, VDB-124485, VDB-124757 and VDB-184574 are pretty similar.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
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Class: Improper authentication
CWE: CWE-287

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Current Price Estimation: 🔍


Nessus ID: 74642
Nessus Name: openSUSE Security Update : strongswan (openSUSE-SU-2012:0691-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 71360
OpenVAS Name: Debian Security Advisory DSA 2483-1 (strongswan)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: no mitigation known
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04/19/2012 🔍
05/31/2012 +42 days 🔍
05/31/2012 +0 days 🔍
05/31/2012 +0 days 🔍
06/01/2012 +1 days 🔍
06/27/2012 +26 days 🔍
06/27/2012 +0 days 🔍
07/09/2012 +12 days 🔍
06/13/2014 +704 days 🔍
03/23/2015 +283 days 🔍
12/05/2021 +2449 days 🔍


Advisory: dsa-2483
Organization: Debian
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-2388 (🔍)

X-Force: 76013
SecurityTracker: 1027110 - strongSwan gmp Plugin Signature Verification Flaw Lets Remote Users Authenticate As Arbitrary Users
Vulnerability Center: 35494 - StrongSwan 4.2.0 Through 4.6.3 GMP Plugin Remote Security Bypass Vulnerability, Medium
SecurityFocus: 53752 - strongSwan GMP Plugin Authentication Bypass Vulnerability
Secunia: 49315 - Debian update for strongswan, Moderately Critical
OSVDB: 82587

See also: 🔍


Created: 03/23/2015 04:50 PM
Updated: 12/05/2021 12:07 PM
Changes: 03/23/2015 04:50 PM (60), 04/14/2017 01:58 PM (19), 12/05/2021 11:52 AM (3), 12/05/2021 12:00 PM (1), 12/05/2021 12:07 PM (1)
Complete: 🔍
Cache ID: 44:2B4:40


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