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 |
---|---|
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://bugzilla.suse.com/show_bug.cgi?id=1156329 | Issue Tracking Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html | Mailing List Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/ | |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/ | |
https://usn.ubuntu.com/4213-1/ | Third Party Advisory |
https://usn.ubuntu.com/4446-1/ | Third Party Advisory |
https://www.debian.org/security/2020/dsa-4682 | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2019-11-26T16:39:59
Updated: 2020-08-05T19:06:08
Reserved: 2019-06-02T00:00:00
Link: CVE-2019-12523
JSON object: View
NVD Information
Status : Modified
Published: 2019-11-26T17:15:10.767
Modified: 2023-11-07T03:03:37.293
Link: CVE-2019-12523
JSON object: View
Redhat Information
No data.
CWE