CVE-2019-12524

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Summary

CVECVE-2019-12524
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-04-15 19:15:00 UTC
Updated2021-02-09 16:55:00 UTC
DescriptionAn 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 And Classification

Problem Types: CWE-306

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Squid-cache Squid All All All All

References

ReferenceSourceLinkTags
[SECURITY] [DLA 2278-1] squid3 security update MLIST lists.debian.org Mailing List, Third Party Advisory
January 2021 Squid Vulnerabilities in NetApp Products | NetApp Product Security CONFIRM security.netapp.com Third Party Advisory
squid/CVEs/CVE-2019-12524.txt · master · Jeriko One / Security · GitLab MISC gitlab.com Third Party Advisory
USN-4446-1: Squid vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com Third Party Advisory
Debian -- Security Information -- DSA-4682-1 squid DEBIAN www.debian.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159658 Oracle Enterprise Linux Security Update for squid:4 (ELSA-2020-4743)
  • 160118 Oracle Enterprise Linux Security Update for squid (ELSA-2022-22254)
  • 356199 Amazon Linux Security Advisory for squid : ALASSQUID4-2023-009
  • 356430 Amazon Linux Security Advisory for squid : ALAS2-2023-2318
  • 356609 Amazon Linux Security Advisory for squid : ALAS2SQUID4-2023-010
  • 377360 Alibaba Cloud Linux Security Update for squid:4 (ALINUX3-SA-2022:0124)
  • 940034 AlmaLinux Security Update for squid:4 (ALSA-2020:4743)
  • 960867 Rocky Linux Security Update for squid:4 (RLSA-2020:4743)
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