CVE-2019-12524
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.
Risk Information
Base Score
9.8
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.549
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| squid security update(DSA-4682-1) squid_4.6-1+deb10u2_i386.deb | Linux |
| squid security update(DSA-4682-1) squid_4.6-1+deb10u2_amd64.deb | Linux |
| SUSE-SU-2020:1227-1(SUSE Linux Enterprise Server 12-SP4 ) squid-3.5.21-26.23.1.x86_64.rpm | Linux |
| SUSE-SU-2020:1227-1(SUSE Linux Enterprise Server 12-SP4 ) squid-debuginfo-3.5.21-26.23.1.x86_64.rpm | Linux |
| SUSE-SU-2020:1227-1(SUSE Linux Enterprise Server 12-SP4 ) squid-debugsource-3.5.21-26.23.1.x86_64.rpm | Linux |
| Web proxy cache server (USN-4446-1) squid_3.5.27-1ubuntu1.7_i386.deb | Linux |
| Web proxy cache server (USN-4446-1) squid_3.5.27-1ubuntu1.7_amd64.deb | Linux |
| Web proxy cache server (USN-4446-1) squid_3.5.12-1ubuntu7.12_i386.deb | Linux |
| Web proxy cache server (USN-4446-1) squid_3.5.12-1ubuntu7.12_amd64.deb | Linux |
| (RHSA-2020:4743) squid:4 security, bug fix, and enhancement update squid-4.11-3.module+el8.3.0+7851+7808b5f9.x86_64.rpm | Linux |
| (RHSA-2020:4743) squid:4 security, bug fix, and enhancement update squid-debugsource-4.11-3.module+el8.3.0+7851+7808b5f9.x86_64.rpm | Linux |
Patch Details
No records foundReferences
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234