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 |
|---|---|
| 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 | Mailing List Third Party Advisory |
| 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 | |
| https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html | |
| https://usn.ubuntu.com/4446-1/ |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Configuration 4 (hide)
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Information
Published : 2019-11-26 17:15
Updated : 2020-08-24 17:37
NVD link : CVE-2019-12523
Mitre link : CVE-2019-12523
JSON object : View
Products Affected
opensuse
- leap
fedoraproject
- fedora
canonical
- ubuntu_linux
squid-cache
- squid
CWE
