Bug 1597286 – CVE-2017-18226 jabberd: privilege escalation via PID file manipulation

Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.

Bug 1597286 - (CVE-2017-18226) CVE-2017-18226 jabberd: privilege escalation via PID file manipulation

Summary:	CVE-2017-18226 jabberd: privilege escalation via PID file manipulation

Status:	CLOSED NOTABUG

Aliases:	CVE-2017-18226

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

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20170905,reported=2...
Keywords:	Security

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2018-07-02 09:29 EDT by Andrej Nemec
Modified:	2018-07-02 11:35 EDT (History)
CC List:	8 users (show)

See Also:
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2018-07-02 11:35:31 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Andrej Nemec 2018-07-02 09:29:12 EDT

It was found that jabberd through 2.6.1 sets the ownership of /var/run/jabber to the jabber account, which might allow local users to kill arbitrary processes by leveraging access to this account for PID file modification before a root script executes a "kill -TERM `cat /var/run/jabber/filename.pid`" command.

References:

https://bugs.gentoo.org/631068

Comment 1 Adrian Reber 2018-07-02 10:51:17 EDT

As far as I can tell this does not affect Fedora as the PID files are not used by systemd.

Note You need to log in before you can comment on or make changes to this bug.