5.9
MEDIUM
CVE-2012-5821
Lynx SSL/TLS Certificate Validation Vulnerability
Description

Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function.

INFO

Published Date :

Nov. 4, 2012, 10:55 p.m.

Last Modified :

Feb. 9, 2024, 3:18 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2012-5821 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 Canonical ubuntu_linux
1 Lynx lynx
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2012-5821.

URL Resource
http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf Exploit
http://www.mandriva.com/security/advisories?name=MDVSA-2013:101 Broken Link
http://www.ubuntu.com/usn/USN-1642-1 Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/79930 Third Party Advisory VDB Entry
https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0351 Third Party Advisory

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).

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

The following list is the news that have been mention CVE-2012-5821 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2012-5821 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 [email protected]

    May. 14, 2024

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

    Feb. 09, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
    Changed Reference Type http://www.mandriva.com/security/advisories?name=MDVSA-2013:101 No Types Assigned http://www.mandriva.com/security/advisories?name=MDVSA-2013:101 Broken Link
    Changed Reference Type http://www.ubuntu.com/usn/USN-1642-1 No Types Assigned http://www.ubuntu.com/usn/USN-1642-1 Third Party Advisory
    Changed Reference Type https://exchange.xforce.ibmcloud.com/vulnerabilities/79930 No Types Assigned https://exchange.xforce.ibmcloud.com/vulnerabilities/79930 Third Party Advisory, VDB Entry
    Changed Reference Type https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0351 No Types Assigned https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0351 Third Party Advisory
    Removed CWE NIST CWE-310
    Added CWE NIST CWE-295
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Aug. 29, 2017

    Action Type Old Value New Value
    Removed Reference http://xforce.iss.net/xforce/xfdb/79930 [No Types Assigned]
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/79930 [No Types Assigned]
  • Initial Analysis by [email protected]

    Nov. 05, 2012

    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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2012-5821 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2012-5821 weaknesses.

Exploit Prediction

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

0.22 }} 0.14%

score

0.59863

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability