CVE-2021-41611
Squid SSL/TLS Trusted Certificate Verification Vulnerability
Description
An issue was discovered in Squid 5.0.6 through 5.1.x before 5.2. When validating an origin server or peer certificate, Squid may incorrectly classify certain certificates as trusted. This problem allows a remote server to obtain security trust well improperly. This indication of trust may be passed along to clients, allowing access to unsafe or hijacked services.
INFO
Published Date :
Oct. 18, 2021, 9:15 a.m.
Last Modified :
Nov. 7, 2023, 3:38 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2021-41611.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/12/23/2 | Mailing List Third Party Advisory |
| http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patch | Vendor Advisory |
| https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5r | Patch Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/ |
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-2021-41611 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-41611 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 -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/ -
Modified Analysis by [email protected]
Mar. 31, 2022
Action Type Old Value New Value Changed Reference Type http://www.openwall.com/lists/oss-security/2021/12/23/2 No Types Assigned http://www.openwall.com/lists/oss-security/2021/12/23/2 Mailing List, Third Party Advisory -
CVE Modified by [email protected]
Dec. 23, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/12/23/2 [No Types Assigned] -
Modified Analysis by [email protected]
Nov. 28, 2021
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 17, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/ [No Types Assigned] -
Modified Analysis by [email protected]
Nov. 17, 2021
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 10, 2021
Action Type Old Value New Value Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/ [No Types Assigned] -
CVE Modified by [email protected]
Oct. 30, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/ [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 21, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patch No Types Assigned http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patch Vendor Advisory Changed Reference Type https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5r No Types Assigned https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5r Patch, Third Party Advisory Added CWE NIST CWE-295 Added CPE Configuration OR *cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* versions from (including) 5.0.6 up to (excluding) 5.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-41611 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-2021-41611
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.14 }} 0.01%
score
0.50024
percentile