Authentication Bypass Affecting cups package, versions <2.2.3-2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-CUPS-364370
- published16 Feb 2018
- disclosed16 Feb 2018
Introduced: 16 Feb 2018
CVE-2017-18190 (opens in a new tab)How to fix?
Upgrade Debian:unstable cups to version 2.2.3-2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream cups package and not the cups package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
A localhost.localdomain whitelist entry in valid_host() in scheduler/client.c in CUPS before 2.2.2 allows remote attackers to execute arbitrary IPP commands by sending POST requests to the CUPS daemon in conjunction with DNS rebinding. The localhost.localdomain name is often resolved via a DNS server (neither the OS nor the web browser is responsible for ensuring that localhost.localdomain is 127.0.0.1).
References
- https://security-tracker.debian.org/tracker/CVE-2017-18190
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18190
- https://lists.debian.org/debian-lts-announce/2018/02/msg00023.html
- https://lists.debian.org/debian-lts-announce/2018/07/msg00003.html
- https://github.com/apple/cups/commit/afa80cb2b457bf8d64f775bed307588610476c41
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1048
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-18190
- https://usn.ubuntu.com/3577-1/