Bug 709662 (CVE-2011-2176)

Summary:	CVE-2011-2176 NetworkManager: Did not honour PolicyKit auth_admin action element by creation of Ad-Hoc wireless networks
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cww, dcbw, jwest, libin.charles, msanders, rkhan, security-response-team, snagar, vdanen
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-19 21:48:45 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:	705806, 715492, 715494
Bug Blocks:	711951

Description Jan Lieskovsky 2011-06-01 10:28:56 UTC

It was found that NetworkManager, a network devices and connections manager,
did not properly enforce the PolicyKit 'auth_admin' action element settings
(did not require authentication by an administrative user), when the
'auth_admin' element was specified in
org.freedesktop.network-manager-settings.system.wifi.share.open (connection
sharing via an open WiFi network) action. A local attacker could use this flaw
to setup an unsecure (passwordless) Ad-Hoc wireless network.

Comment 6 Huzaifa S. Sidhpurwala 2011-06-09 05:00:41 UTC

Dan, jirka,

any update on where this is going?

Comment 10 Huzaifa S. Sidhpurwala 2011-06-17 04:59:08 UTC

Jirka, Dan:

It seems that other actions in /usr/share/polkit-1/actions/org.freedesktop.network-manager-settings.system.policy does not work with the version of NM in Fedora-14 and perhaps also RHEL6.
Would this patch address those issues as well?

Comment 11 Huzaifa S. Sidhpurwala 2011-06-17 06:40:01 UTC

org.freedesktop.network-manager-settings.system.modify
org.freedesktop.network-manager-settings.system.hostname.modify

Does work.


org.freedesktop.network-manager-settings.system.wifi.share.protected
org.freedesktop.network-manager-settings.system.wifi.share.open

Does not work.

So this is really just wireless related.

Comment 12 Huzaifa S. Sidhpurwala 2011-06-17 07:25:25 UTC

I propose we get both these issues fixed, so that we can cover it in the same erratum

Comment 15 Vincent Danen 2011-06-22 17:46:03 UTC

This issue is public via the following commits:

http://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?h=wifi-share-auth&id=e7273c1609ac267e1d77ff03c97c8929f15e3737
http://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?h=wifi-share-auth&id=287fe10c40ae9b90ce703b79f3479b755f0956c0
http://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?h=wifi-share-auth&id=e5085f950730b1e2e68645231e2042127c29a82e

Comment 16 Huzaifa S. Sidhpurwala 2011-06-23 04:01:23 UTC

Created NetworkManager tracking bugs for this issue

Affects: fedora-all [bug 715492]

Comment 18 errata-xmlrpc 2011-07-12 20:11:18 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0930 https://rhn.redhat.com/errata/RHSA-2011-0930.html

Comment 19 Bin Li 2011-08-16 13:09:21 UTC

Hi guys,

 A little confused about this issue, how use this flaw to setup an unsecure (passwordless) Ad-Hoc wireless network.

 Does it affect the 0.8.2? From this source code I can't find any process for below.

org.freedesktop.network-manager-settings.system.wifi.share.protected
org.freedesktop.network-manager-settings.system.wifi.share.open

 Thanks!