[28998] in Kerberos
RE: How to determine the version (UNCLASSIFIED)
daemon@ATHENA.MIT.EDU (Mackanick, Jason W CTR DISA GIG-OP)
Wed Jan 9 17:21:57 2008
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Date: Wed, 9 Jan 2008 16:18:13 -0500
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From: "Mackanick, Jason W CTR DISA GIG-OP" <jason.mackanick.ctr@disa.mil>
To: =?iso-8859-1?Q?Roberto_C=2E_S=E1nchez?= <roberto@connexer.com>,
<kerberos@mit.edu>
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Thanks Roberto,
That can help me with some direction. I have to provide guidance and automated shell scripts for Sun, HP, AIX and Redhat. I new about the changelog for Redhat, but didn't know about the krb5-config command.
Jason Mackanick, CISSP
DISA FSO Support & Standards Section
Technical Support Team
-----Original Message-----
From: kerberos-bounces@mit.edu [mailto:kerberos-bounces@mit.edu] On Behalf Of Roberto C. Sánchez
Sent: Wednesday, January 09, 2008 4:09 PM
To: kerberos@mit.edu
Subject: Re: How to determine the version (UNCLASSIFIED)
On Wed, Jan 09, 2008 at 10:53:11AM -0500, Mackanick, Jason W CTR DISA GIG-OP wrote:
> Classification: UNCLASSIFIED
> Caveats: NONE
>
> Various vendors for unix package kerberos with the operating system.
> Is there a method to determine the version number for compliance
> purposes with items such as advisories that are propagated to a CVE?
>
Jason,
Assuming that the vendor ships the kerberos development packages, something like this might be what you want:
krb5-config --version
Kerberos 5 release 1.4.4
A cursory look would tell you that I am vulnerable to a heap of CVEs related to Kerberos.
However, in my case I am running Debian Etch. Debian has a policy of not introducing new upstream versions just to patch security fixes, so they always do targeted security fixes. So, the version installed on my machine is something like this:
apt-cache policy libkrb5-dev |grep Installed
Installed: 1.4.4-7etch4
Looking at the package changelog, there are several entries (4, in fact) like this:
krb5 (1.4.4-7etch4) stable-security; urgency=emergency
* Fix bug in fix for CVE-2007-3999: the previous patch could allow an
overflow of up to 32 bytes. Depending on how locals are layed out on
the stack, this may or may not be a problem.
-- Sam Hartman <hartmans@debian.org> Tue, 04 Sep 2007 19:51:49 -0400
The total number of CVEs noted in the changelog for the current release is six. So, while a look at the raw version number as reported by Kerberos looks bad, further infestigation shows that I am OK in that department (assuming there have only been six CVEs total since the release of 1.4.4; I have not checked).
So, I guess it depends in part on your Unix vendor's security policy.
Since you are .mil, you are most probably using Solaris. I know that Sun deploys packages (you can access information about them using pkginfo), but that about exhausts my knowledge of Solaris-specific sysadmin knowledge. So, if sun ships detailed changelogs with their packages (like Debian does), you might be able to glean the necessary information from there.
Regards,
-Roberto
--
Roberto C. Sánchez
http://people.connexer.com/~roberto
http://www.connexer.com
Classification: UNCLASSIFIED
Caveats: NONE
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