An issue was discovered in Squid before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.
References
Link | Resource |
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https://bugzilla.suse.com/show_bug.cgi?id=1156329 | Issue Tracking Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html | Broken Link |
http://www.squid-cache.org/Advisories/SQUID-2019_8.txt | Third Party Advisory |
https://usn.ubuntu.com/4213-1/ | Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/ | Mailing List Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/ | Mailing List Third Party Advisory |
https://www.debian.org/security/2020/dsa-4682 | Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html | Mailing List Third Party Advisory |
https://usn.ubuntu.com/4446-1/ | Third Party Advisory |
Configurations
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Information
Published : 2019-11-26 09:15
Updated : 2023-02-28 08:20
NVD link : CVE-2019-12523
Mitre link : CVE-2019-12523
JSON object : View
CWE
Products Affected
fedoraproject
- fedora
canonical
- ubuntu_linux
opensuse
- leap
debian
- debian_linux
squid-cache
- squid