CVE-2017-18190
Published: 16 February 2018
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).
Priority
Status
| Package | Release | Status |
|---|---|---|
|
cups Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(2.2.4-7ubuntu2)
|
| trusty |
Released
(1.7.2-0ubuntu1.9)
|
|
| upstream |
Released
(2.2.2)
|
|
| xenial |
Released
(2.1.3-4ubuntu0.4)
|
|
|
Patches: upstream: https://github.com/apple/cups/commit/afa80cb2b457bf8d64f775bed307588610476c41 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |