GNU Openswan up to 2.4 IPsec IKEv1 Packet denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in GNU Openswan up to 2.4. This affects an unknown function of the component IPsec IKEv1 Packet Handler. Executing a manipulation can lead to denial of service. This vulnerability is registered as CVE-2005-3671. It is possible to launch the attack remotely. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as critical was found in GNU Openswan up to 2.4. This vulnerability affects an unknown part of the component IPsec IKEv1 Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

The Internet Key Exchange version 1 (IKEv1) implementation in Openswan 2 (openswan-2) before 2.4.4, and freeswan in SUSE LINUX 9.1 before 2.04_1.5.4-1.23, allow remote attackers to cause a denial of service via (1) a crafted packet using 3DES with an invalid key length, or (2) unspecified inputs when Aggressive Mode is enabled and the PSK is known, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1.

The weakness was published 11/14/2005 with Oulu University Secure Programming Group (OUSPG) (Website). The advisory is shared for download at openswan.org. This vulnerability was named CVE-2005-3671 since 11/18/2005. 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 MITRE ATT&CK project declares the attack technique as T1499.

As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 20313 (GLSA-200512-04 : Openswan, IPsec-Tools: Vulnerabilities in ISAKMP Protocol implementation), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at openswan.org. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (23033), Tenable (20313), SecurityFocus (BID 15416†), OSVDB (60991†) and Secunia (SA18115†). Additional details are provided at ficora.fi. Similar entries are available at VDB-1912, VDB-1898, VDB-1896 and VDB-1895. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: 20313
Nessus Name: GLSA-200512-04 : Openswan, IPsec-Tools: Vulnerabilities in ISAKMP Protocol implementation
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 56018
OpenVAS Name: Gentoo Security Advisory GLSA 200512-04 (openswan ipsec-tools)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: openswan.org
ISS Proventia IPS: 🔍

Timelineinfo

11/14/2005 🔍
11/14/2005 +0 days 🔍
11/14/2005 +0 days 🔍
11/15/2005 +0 days 🔍
11/16/2005 +1 days 🔍
11/18/2005 +2 days 🔍
11/18/2005 +0 days 🔍
12/12/2005 +24 days 🔍
12/15/2005 +3 days 🔍
12/18/2005 +3 days 🔍
12/20/2005 +2 days 🔍
07/21/2024 +6788 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: openswan.org
Organization: Oulu University Secure Programming Group (OUSPG)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-3671 (🔍)
GCVE (CVE): GCVE-0-2005-3671
GCVE (VulDB): GCVE-100-1900
CERT: 🔍
X-Force: 23033
SecurityFocus: 15416 - Openswan IKE Traffic Denial Of Service Vulnerabilities
Secunia: 18115 - SUSE update for ipsec-tools / freeswan / openswan, Moderately Critical
OSVDB: 60991 - OpenSWAN ISAKMP Protocol Unspecified Malformed Input Remote DoS (PROTOS)
SecurityTracker: 1015214
Vulnerability Center: 10024 - OpenSwan-2 before 2.4.4 Remote DoS via Invalid Malformed Packets, High

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 11/16/2005 12:02
Updated: 07/21/2024 11:04
Changes: 11/16/2005 12:02 (84), 07/05/2019 12:56 (12), 07/21/2024 11:04 (17)
Complete: 🔍
Cache ID: 216::103

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