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Bug 845350 (CVE-2012-3449)

Summary:	CVE-2012-3449 openvswitch: creates world writable directories: /var/lib/openvswitch/pki/*ca/incoming/
Product:	[Other] Security Response	Reporter:	Kurt Seifried <kseifried>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	chrisw, markmc, tgraf
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=low,public=20120802,reported=20120802,source=internet,cvss2=3.3/AV:L/AC:M/Au:N/C:P/I:P/A:N,fedora-all/openvswitch=affected
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-02-28 10:33:52 EST	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Bug Depends On:	845351
Bug Blocks:

Description Kurt Seifried 2012-08-02 15:05:58 EDT

Andreas Beckmann debian@abeckmann.de reports:

openvswitch-pki creates the following world writable directories during
installation:

    drwx-wx-wx 2 root root 40 Aug  1 05:32 /var/lib/openvswitch/pki/controllerca/incoming
    drwx-wx-wx 2 root root 40 Aug  1 05:32 /var/lib/openvswitch/pki/switchca/incoming

Even if an ordinary local user cannot list the contents of the
directory, he may correctly derive/guess filenames (unless they are
exclusively $(mktemp)) and delete and replace files in there.

I don't know how openvswitch-pki works, how it uses this directory,
what probelms could possibly arise out of this.

References: 
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=683665

Please note on Fedora 16 and 17 run the command:

/usr/bin/ovs-pki --force init

to create the directories.

Comment 1 Kurt Seifried 2012-08-02 15:06:39 EDT

Created openvswitch tracking bugs for this issue

Affects: fedora-all [bug 845351]

Comment 2 Thomas Graf 2012-11-19 08:56:45 EST

Fixes pushed to all affected Fedora versions.

Comment 3 Thomas Graf 2013-02-28 10:33:52 EST

See comment #c2