Bug 1490858 (CVE-2017-14312)

Summary:	CVE-2017-14312 nagios: Incorrect file permissions leading to possible privilege escalation
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	affix, apevec, athmanem, b.heden, chrisw, drusso, jjoyce, jmadigan, jmrazek, jose.p.oliveira.oss, jschluet, jshepherd, kbasil, kpiwko, lemenkov, lgriffin, lhh, linux, lpeer, markmc, mburns, mmagr, ngough, ondrejj, pbraun, pwright, rbryant, rrajasek, sclewis, shawn.starr, sisharma, slinaber, smooge, srevivo, ssaha, s, swilkerson, tdecacqu, vbellur
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:25:05 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1490859, 1490860
Bug Blocks:	1490867

Description Adam Mariš 2017-09-12 11:48:45 UTC

Nagios Core through 4.3.4 initially executes /usr/sbin/nagios as root but supports configuration options in which this file is owned by a non-root account (and similarly can have nagios.cfg owned by a non-root account), which allows local users to gain privileges by leveraging access to this non-root account. 

Upstream bug:

https://github.com/NagiosEnterprises/nagioscore/issues/424

Comment 1 Adam Mariš 2017-09-12 11:49:32 UTC

Created nagios tracking bugs for this issue:

Affects: epel-all [bug 1490860]
Affects: fedora-all [bug 1490859]

Comment 2 Jason Shepherd 2017-09-19 04:58:38 UTC

In RHMAP both the /usr/sbin/nagios, and /etc/nagios/nagios.cfg  files are owned by root.

sh-4.2$ ls -la /etc/nagios/nagios.cfg 
-rwxrwxrwx. 1 root root 44259 Jun 16 00:13 /etc/nagios/nagios.cfg
sh-4.2$ ls -la /usr/sbin/nagios 
-rwxr-xr-x. 1 root root 713872 Jan 31  2017 /usr/sbin/nagios

Setting RHMAP as not affected.