Bug 1607291 – CVE-2018-4181 cups: Manipulation of cupsd.conf by a local attacker resulting in limited reads of arbitrary files as root

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Bug 1607291 - (CVE-2018-4181) CVE-2018-4181 cups: Manipulation of cupsd.conf by a local attacker resulting in limited reads of arbitrary files as root

Summary:	CVE-2018-4181 cups: Manipulation of cupsd.conf by a local attacker resulting ...

Status:	NEW

Aliases:	CVE-2018-4181

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=moderate,public=20180509,repor...
Keywords:	Security

Depends On:	1607295 1619490 1607293
Blocks:	1607292
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Reported:	2018-07-23 04:24 EDT by Andrej Nemec
Modified:	2018-08-20 23:33 EDT (History)
CC List:	12 users (show)

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Description Andrej Nemec 2018-07-23 04:24:50 EDT

It was found that a local attacker can perform limited reads of arbitrary files as root by manipulating cupsd.conf.

Upstream patch:

https://github.com/apple/cups/commit/d47f6aec436e0e9df6554436e391471097686ecc

Comment 1 Andrej Nemec 2018-07-23 04:31:00 EDT

Created cups tracking bugs for this issue:

Affects: fedora-all [bug 1607293]

Comment 3 Doran Moppert 2018-08-20 23:32:35 EDT

Similar to CVE-2018-4180, this attack vector is only available to users in the cups SystemGroup groups, who can manipulate cupsd.conf using cupsctl.  Impact is further limited when SELinux is enforcing as cupsd operates under a restricted context cupsd_t.

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