Strongswan up to 4.2.13 IKE Daemon input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Strongswan (Network Encryption Software). This affects an unknown code block of the component IKE Daemon. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. The summary by CVE is:

The pluto IKE daemon in Openswan and Strongswan IPsec 2.6 before 2.6.21 and 2.4 before 2.4.14, and Strongswan 4.2 before 4.2.14 and 2.8 before 2.8.9, allows remote attackers to cause a denial of service (daemon crash and restart) via a crafted (1) R_U_THERE or (2) R_U_THERE_ACK Dead Peer Detection (DPD) IPsec IKE Notification message that triggers a NULL pointer dereference related to inconsistent ISAKMP state and the lack of a phase2 state association in DPD.

The bug was discovered 03/30/2009. The weakness was released 04/01/2009 with Intra2net AG (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2009-0790 since 03/04/2009. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 41586 (SuSE 10 Security Update : strongswan (ZYPP Patch Number 6116)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 155964 (Oracle Enterprise Linux Update for Openswan (ELSA-2009-0402)).

Upgrading to version 2.8.3 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (49523) and Tenable (41586). Entries connected to this vulnerability are available at 44476, 44160, 48459 and 48458.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 41586
Nessus Name: SuSE 10 Security Update : strongswan (ZYPP Patch Number 6116)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 63731
OpenVAS Name: Debian Security Advisory DSA 1759-1 (strongswan)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Strongswan 2.8.3
McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/04/2009 🔍
03/24/2009 +20 days 🔍
03/30/2009 +6 days 🔍
03/30/2009 +0 days 🔍
03/30/2009 +0 days 🔍
03/30/2009 +0 days 🔍
03/31/2009 +1 days 🔍
04/01/2009 +1 days 🔍
04/01/2009 +0 days 🔍
04/07/2009 +6 days 🔍
09/24/2009 +170 days 🔍
03/17/2015 +2000 days 🔍
08/31/2019 +1628 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Organization: Intra2net AG
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-0790 (🔍)
OVAL: 🔍

X-Force: 49523
SecurityTracker: 1021949
Vulnerability Center: 21491 - Openswan and Strongswan IPsec Pluto IKE Daemon Remote Denial of Service Vulnerability, High
SecurityFocus: 34296 - Openswan and strongSwan DPD Packet Remote Denial Of Service Vulnerability
Secunia: 34472 - Debian update for openswan, Moderately Critical
OSVDB: 53209 - Openswan and strongSwan DPD denial of service
Vupen: ADV-2009-0886

See also: 🔍

Entryinfo

Created: 03/17/2015 23:38
Updated: 08/31/2019 20:31
Changes: 03/17/2015 23:38 (91), 08/31/2019 20:31 (4)
Complete: 🔍
Cache ID: 18:691:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!