strongSwan up to 5.3.1 IKEv2 Authentication information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in strongSwan up to 5.3.1. This affects an unknown part of the component IKEv2 Authentication. Executing a manipulation can lead to information disclosure. This vulnerability appears as CVE-2015-4171. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in strongSwan up to 5.3.1 (Network Encryption Software) and classified as problematic. This vulnerability affects an unknown functionality of the component IKEv2 Authentication. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality.

The weakness was presented 06/08/2015 by Alexander E. Patrakov as confirmed advisory (Website). The advisory is shared for download at strongswan.org. The public release was coordinated in cooperation with the vendor. This vulnerability was named CVE-2015-4171 since 06/02/2015. The attack can be initiated remotely. The successful exploitation needs a single authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 84026 (Debian DSA-3282-1 : strongswan - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 167875 (SUSE Enterprise Linux Security update for strongswan (SUSE-SU-2015:1228-1)).

Upgrading to version 5.3.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (84026), SecurityFocus (BID 74933†), SecurityTracker (ID 1032514†) and Vulnerability Center (SBV-50674†). See VDB-13176 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 84026
Nessus Name: Debian DSA-3282-1 : strongswan - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703282
OpenVAS Name: Debian Security Advisory DSA 3282-1 (strongswan - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: strongSwan 5.3.2

Timelineinfo

06/01/2015 🔍
06/01/2015 +0 days 🔍
06/02/2015 +1 days 🔍
06/08/2015 +6 days 🔍
06/08/2015 +0 days 🔍
06/08/2015 +0 days 🔍
06/09/2015 +1 days 🔍
06/09/2015 +0 days 🔍
06/10/2015 +1 days 🔍
06/23/2015 +13 days 🔍
05/20/2022 +2523 days 🔍

Sourcesinfo

Advisory: USN-2628-1
Researcher: Alexander E. Patrakov
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2015-4171 (🔍)
GCVE (CVE): GCVE-0-2015-4171
GCVE (VulDB): GCVE-100-75748

OVAL: 🔍

SecurityFocus: 74933 - strongSwan VPN Client DNS Spoofing Vulnerability
SecurityTracker: 1032514 - strongSwan IKEv2 Authentication Flaw Lets Remote Authenticated Users Obtain Potentially Sensitive Information
Vulnerability Center: 50674 - StrongSwan Remote Credentials Disclosure due to Improper Enforcement of Server Authentication Restrictions, Low

See also: 🔍

Entryinfo

Created: 06/09/2015 13:02
Updated: 05/20/2022 10:00
Changes: 06/09/2015 13:02 (77), 07/01/2017 08:07 (5), 05/20/2022 09:56 (4), 05/20/2022 10:00 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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