Bug 819031 (CVE-2012-2314)

Summary:	CVE-2012-2314 anaconda: Weak permissions by writing password configuration file in bootloader configuration module
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	anaconda-maint-list, g.kaviyarasu, jonathan, jrusnack, mads, pjones, vanmeeuwen+fedora
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	grub2-1.99-13.fc16.3	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-04-04 23:14:51 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:	819035
Bug Blocks:

Description Jan Lieskovsky 2012-05-04 15:59:39 UTC

A security flaw was found in the way bootloader configuration module of Anaconda, a graphical system installer, stored password hashes when performing write of password configuration file (0755 permissions were used instead of 0700 ones). A local users could use this flaw to obtain password hashes and conduct brute force password guessing attacks (possibly leading to password circumvention, machine reboot or use of custom kernel or initrd command line parameters).

Upstream patch:
[1] http://git.fedorahosted.org/git/?p=anaconda.git;a=commit;h=03ef13b625cc06873a924e0610340f8489fd92df

Comment 1 Jan Lieskovsky 2012-05-04 16:02:09 UTC

This issue did NOT affect the versions of the anaconda package, as shipped with Red Hat Enterprise Linux 5 and 6.

--

This issue did NOT affect the versions of the anaconda package, as shipped with Fedora release of 15.

This issue affects the version of the anaconda package, as shipped with Fedora release of 16.

Comment 2 Jan Lieskovsky 2012-05-04 16:03:44 UTC

Created anaconda tracking bugs for this issue

Affects: fedora-16 [bug 819035]

Comment 3 Jan Lieskovsky 2012-05-04 16:07:54 UTC

CVE Request:
[2] http://www.openwall.com/lists/oss-security/2012/05/04/10

Comment 5 Jan Lieskovsky 2012-05-04 16:14:55 UTC

The CVE identifier of CVE-2012-2314 has been assigned to this issue:
http://www.openwall.com/lists/oss-security/2012/05/04/12

Comment 6 Fedora Update System 2012-05-10 14:20:11 UTC

grub2-1.99-13.fc16.3 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.