5.0
MEDIUM CVSS 2.0
CVE-2009-0051
ZXID OpenSSL DSA_verify Certificate Chain Validation Bypass
Description

ZXID 0.29 and earlier does not properly check the return value from the OpenSSL DSA_verify 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.

INFO

Published Date :

Jan. 7, 2009, 6:30 p.m.

Last Modified :

April 9, 2025, 12:30 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2009-0051 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Zxid zxid
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
Solution
To address the certificate chain validation bypass vulnerability, upgrade ZXID to the latest version and apply relevant patches.
  • Upgrade to a newer version of ZXID.
  • Apply the latest patches to ensure system security.
Public PoC/Exploit Available at Github

CVE-2009-0051 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2009-0051 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 18 hours, 54 minutes ago
6 stars 0 fork 0 watcher
Born at : Feb. 23, 2023, 5:42 a.m. This repo has been linked 479 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2009-0051 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2009-0051 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.ocert.org/advisories/ocert-2008-016.html
    Added Reference http://www.securityfocus.com/archive/1/499827/100/0/threaded
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/47837
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 11, 2018

    Action Type Old Value New Value
    Removed Reference http://www.securityfocus.com/archive/1/archive/1/499827/100/0/threaded [No Types Assigned]
    Added Reference http://www.securityfocus.com/archive/1/499827/100/0/threaded [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 08, 2017

    Action Type Old Value New Value
    Removed Reference http://xforce.iss.net/xforce/xfdb/47837 [No Types Assigned]
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/47837 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 07, 2009

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.09 }} -0.02%

score

0.22399

percentile