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CVE-2019-12524 Detail

Description

An issue was discovered in Squid through 4.7. When handling requests from users, Squid checks its rules to see if the request should be denied. Squid by default comes with rules to block access to the Cache Manager, which serves detailed server information meant for the maintainer. This rule is implemented via url_regex. The handler for url_regex rules URL decodes an incoming request. This allows an attacker to encode their URL to bypass the url_regex check, and gain access to the blocked resource.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12524.txt Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html Mailing List  Third Party Advisory 
https://security.netapp.com/advisory/ntap-20210205-0006/ Third Party Advisory 
https://usn.ubuntu.com/4446-1/ Third Party Advisory 
https://www.debian.org/security/2020/dsa-4682 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-306 Missing Authentication for Critical Function cwe source acceptance level NIST  

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-12524
NVD Published Date:
04/15/2020
NVD Last Modified:
02/09/2021
Source:
MITRE