ARRL tqsllib 2.0 openssl_cert.cpp EVP_VerifyFinal improper authentication

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.
5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in ARRL tqsllib 2.0. The impacted element is the function EVP_VerifyFinal of the file openssl_cert.cpp. Performing a manipulation results in improper authentication. This vulnerability is identified as CVE-2009-0124. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in ARRL tqsllib 2.0. This affects the function EVP_VerifyFinal of the file openssl_cert.cpp. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality. The summary by CVE is:

The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL) tqsllib 2.0 does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.

The bug was discovered 01/07/2009. The weakness was released 01/15/2009 by Security Team with Google Security Team (Website). The advisory is shared at redhat.com. This vulnerability is uniquely identified as CVE-2009-0124 since 01/15/2009. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 35400 (Fedora 9 : tqsllib-2.0-5.fc9 (2009-0543)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (35400), SecurityFocus (BID 33150†), OSVDB (51164†), Secunia (SA33543†) and Vulnerability Center (SBV-20584†). Entries connected to this vulnerability are available at VDB-46062, VDB-45925, VDB-45922 and VDB-45799. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 35400
Nessus Name: Fedora 9 : tqsllib-2.0-5.fc9 (2009-0543)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2009 🔍
01/07/2009 +0 days 🔍
01/07/2009 +0 days 🔍
01/14/2009 +7 days 🔍
01/15/2009 +1 days 🔍
01/15/2009 +0 days 🔍
01/15/2009 +0 days 🔍
01/15/2009 +0 days 🔍
01/16/2009 +1 days 🔍
01/21/2009 +5 days 🔍
03/17/2015 +2246 days 🔍
08/25/2019 +1622 days 🔍

Sourcesinfo

Advisory: redhat.com
Researcher: Security Team
Organization: Google Security Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-0124 (🔍)
GCVE (CVE): GCVE-0-2009-0124
GCVE (VulDB): GCVE-100-45921
SecurityFocus: 33150 - OpenSSL 'EVP_VerifyFinal' Function Signature Verification Vulnerability
Secunia: 33543
OSVDB: 51164 - Multiple vendor OpenSSL EVP_VerifyFinal() certificate chain validation security bypass
Vulnerability Center: 20584 - ARRL tqsllib 2.0 OpenSSL EVP_VerifyFinal Function Remote Certificate Validation Bypass Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 08/25/2019 16:38
Changes: 03/17/2015 16:11 (71), 08/25/2019 16:38 (6)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!