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 :
April 11, 2025, 12:51 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the affected Lynx package.
- Update the affected lynx-cur package.
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 |
| 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 |
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.
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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2013:101 Added Reference http://www.ubuntu.com/usn/USN-1642-1 Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/79930 Added Reference https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0351 -
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
Vulnerability Scoring Details
Base CVSS Score: 5.9
Base CVSS Score: 5.8
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.24 }} -0.12%
score
0.43936
percentile