CVE-2017-18190
HIGH severity · CVSS 7.5 · CWE-290
7.5CVSS HIGH
Summary
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).
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)3%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/apple/cups/commit/afa80cb2b457bf8d64f775bed307588610476c41 ↗
Additional information
- NVD record
- https://github.com/apple/cups/commit/afa80cb2b457bf8d64f775bed307588610476c41Patch
- https://lists.debian.org/debian-lts-announce/2018/02/msg00023.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00003.htmlAdvisory
- https://usn.ubuntu.com/3577-1/Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1048Advisory