CVE-2024-23638
Squid Cache Manager DoS Vulnerability
Description
Squid is a caching proxy for the Web. Due to an expired pointer reference bug, Squid prior to version 6.6 is vulnerable to a Denial of Service attack against Cache Manager error responses. This problem allows a trusted client to perform Denial of Service when generating error pages for Client Manager reports. Squid older than 5.0.5 have not been tested and should be assumed to be vulnerable. All Squid-5.x up to and including 5.9 are vulnerable. All Squid-6.x up to and including 6.5 are vulnerable. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. As a workaround, prevent access to Cache Manager using Squid's main access control: `http_access deny manager`.
INFO
Published Date :
Jan. 24, 2024, 12:15 a.m.
Last Modified :
April 25, 2024, 6:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2024-23638 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2024-23638.
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).
A detailed repository of vulnerabilities that I discovered in The Squid Caching Proxy.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-23638 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-23638 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]
Apr. 25, 2024
Action Type Old Value New Value Added Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/7R4KPSO3MQT3KAOZV7LC2GG3CYMCGK7H/ [No types assigned] Added Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/XWQHRDRHDM5PQTU6BHH4C5KGL37X6TVI/ [No types assigned] -
CVE Modified by [email protected]
Feb. 08, 2024
Action Type Old Value New Value Added Reference GitHub, Inc. https://security.netapp.com/advisory/ntap-20240208-0010/ [No types assigned] -
Initial Analysis by [email protected]
Jan. 30, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.squid-cache.org/Versions/v5/SQUID-2023_11.patch No Types Assigned http://www.squid-cache.org/Versions/v5/SQUID-2023_11.patch Mailing List, Patch Changed Reference Type http://www.squid-cache.org/Versions/v6/SQUID-2023_11.patch No Types Assigned http://www.squid-cache.org/Versions/v6/SQUID-2023_11.patch Mailing List, Patch Changed Reference Type https://github.com/squid-cache/squid/commit/290ae202883ac28a48867079c2fb34c40efd382b No Types Assigned https://github.com/squid-cache/squid/commit/290ae202883ac28a48867079c2fb34c40efd382b Patch Changed Reference Type https://github.com/squid-cache/squid/commit/e8118a7381213f5cfcdeb4cec1d2d854bfd261c8 No Types Assigned https://github.com/squid-cache/squid/commit/e8118a7381213f5cfcdeb4cec1d2d854bfd261c8 Patch Changed Reference Type https://github.com/squid-cache/squid/security/advisories/GHSA-j49p-553x-48rx No Types Assigned https://github.com/squid-cache/squid/security/advisories/GHSA-j49p-553x-48rx Vendor Advisory Changed Reference Type https://megamansec.github.io/Squid-Security-Audit/stream-assert.html No Types Assigned https://megamansec.github.io/Squid-Security-Audit/stream-assert.html Exploit Added CWE NIST CWE-672 Added CPE Configuration OR *cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* versions from (including) 5.0 up to (including) 5.9 *cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* versions from (including) 6.0 up to (excluding) 6.6 -
CVE Received by [email protected]
Jan. 24, 2024
Action Type Old Value New Value Added Description Squid is a caching proxy for the Web. Due to an expired pointer reference bug, Squid prior to version 6.6 is vulnerable to a Denial of Service attack against Cache Manager error responses. This problem allows a trusted client to perform Denial of Service when generating error pages for Client Manager reports. Squid older than 5.0.5 have not been tested and should be assumed to be vulnerable. All Squid-5.x up to and including 5.9 are vulnerable. All Squid-6.x up to and including 6.5 are vulnerable. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. As a workaround, prevent access to Cache Manager using Squid's main access control: `http_access deny manager`. Added Reference GitHub, Inc. https://github.com/squid-cache/squid/security/advisories/GHSA-j49p-553x-48rx [No types assigned] Added Reference GitHub, Inc. https://github.com/squid-cache/squid/commit/290ae202883ac28a48867079c2fb34c40efd382b [No types assigned] Added Reference GitHub, Inc. https://github.com/squid-cache/squid/commit/e8118a7381213f5cfcdeb4cec1d2d854bfd261c8 [No types assigned] Added Reference GitHub, Inc. https://megamansec.github.io/Squid-Security-Audit/stream-assert.html [No types assigned] Added Reference GitHub, Inc. http://www.squid-cache.org/Versions/v5/SQUID-2023_11.patch [No types assigned] Added Reference GitHub, Inc. http://www.squid-cache.org/Versions/v6/SQUID-2023_11.patch [No types assigned] Added CWE GitHub, Inc. CWE-825 Added CVSS V3.1 GitHub, Inc. AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-23638 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-2024-23638
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.86 }} 0.04%
score
0.82059
percentile