Vulnerability in Apple Cups
CVE-2017-18190
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.029 (86.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
- Apple Cups
- Canonical Ubuntu Linux — versions 14.04, 16.04
- Debian Linux — versions 7.0, 8.0
Weakness classification (CWE)
References
- usn.ubuntu.com/3577-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/07/msg00003.html (mailing-list, Mailing List, Third Party Advisory)
- github.com/apple/cups/commit/afa80cb2b457bf8d64f775bed307588610476c41 (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/02/msg00023.html (mailing-list, Mailing List, Third Party Advisory)
- bugs.chromium.org/p/project-zero/issues/detail (Exploit, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-18190?
- CVE-2017-18190 is a high-severity vulnerability in Apple Cups, classified under Authentication Bypass by Spoofing. CVSS score: 7.5/10. Published 2018-02-16.
- How severe is CVE-2017-18190?
- High severity. CVSS v3 base score is 7.5 out of 10.