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 |
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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Configuration 6 (hide)
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History
No history.
Information
Published : 2019-11-26 17:15
Updated : 2023-11-07 03:03
NVD link : CVE-2019-12523
Mitre link : CVE-2019-12523
CVE.ORG link : CVE-2019-12523
JSON object : View
Products Affected
canonical
- ubuntu_linux
squid-cache
- squid
fedoraproject
- fedora
opensuse
- leap
debian
- debian_linux
CWE