gnu gnutls up to 2.6.1 Certificates lib/x509/verify.c _gnutls_x509_verify_certificate cryptographic issue

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

Summaryinfo

A vulnerability has been found in gnu gnutls up to 2.6.1 and classified as problematic. This affects the function _gnutls_x509_verify_certificate in the library lib/x509/verify.c of the component Certificates. This manipulation causes cryptographic issue. This vulnerability is registered as CVE-2009-1417. Furthermore, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in gnu gnutls up to 2.6.1 (Network Encryption Software). It has been declared as problematic. Affected by this vulnerability is the function _gnutls_x509_verify_certificate in the library lib/x509/verify.c of the component Certificates. The manipulation with an unknown input leads to a cryptographic issue vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect integrity. The summary by CVE is:

gnutls-cli in GnuTLS before 2.6.6 does not verify the activation and expiration times of X.509 certificates, which allows remote attackers to successfully present a certificate that is (1) not yet valid or (2) no longer valid, related to lack of time checks in the _gnutls_x509_verify_certificate function in lib/x509/verify.c in libgnutls_x509, as used by (a) Exim, (b) OpenLDAP, and (c) libsoup.

The bug was discovered 04/30/2009. The weakness was published 04/30/2009 by Miroslav Kratochvil (Website). It is possible to read the advisory at article.gmane.org. This vulnerability is known as CVE-2009-1417 since 04/24/2009. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

A public exploit has been developed in ANSI C. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 42994 (Mandriva Linux Security Advisory : gnutls (MDVSA-2009:308)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l.

Upgrading to version 2.6.2 eliminates this vulnerability. A possible mitigation has been published 8 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (50261), Tenable (42994), SecurityFocus (BID 34783†), OSVDB (54625†) and Secunia (SA34842†). Similar entries are available at VDB-47994 and VDB-47993. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

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: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 42994
Nessus Name: Mandriva Linux Security Advisory : gnutls (MDVSA-2009:308)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 64785
OpenVAS Name: FreeBSD Ports: gnutls
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: gnutls 2.6.2

Timelineinfo

04/24/2009 🔍
04/30/2009 +6 days 🔍
04/30/2009 +0 days 🔍
04/30/2009 +0 days 🔍
04/30/2009 +0 days 🔍
04/30/2009 +0 days 🔍
04/30/2009 +0 days 🔍
05/01/2009 +1 days 🔍
05/25/2009 +24 days 🔍
12/03/2009 +192 days 🔍
12/04/2009 +1 days 🔍
03/17/2015 +1929 days 🔍
09/04/2019 +1632 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: article.gmane.org
Researcher: Miroslav Kratochvil
Status: Confirmed

CVE: CVE-2009-1417 (🔍)
GCVE (CVE): GCVE-0-2009-1417
GCVE (VulDB): GCVE-100-47995
X-Force: 50261
SecurityFocus: 34783 - GnuTLS Prior to 2.6.6 Multiple Remote Vulnerabilities
Secunia: 34842
OSVDB: 54625 - CVE-2009-1417 - GnuTLS - Spoofing Issue
SecurityTracker: 1022159
Vulnerability Center: 22150 - GnuTLS Prior to 2.6.6 Remote Spoofing Attack and Gain Access Vulnerability, Medium
Vupen: ADV-2009-1218

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/17/2015 23:38
Updated: 09/04/2019 17:15
Changes: 03/17/2015 23:38 (88), 09/04/2019 17:15 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!