Re: [Full-Disclosure] Another Low Blow From Microsoft: MBSA Failure!

[Byron Copeland <nodialtone@comcast.net>]

Thank you! .secure

I have proved in the past myself that some patches were ineffective with
other vulnerabilities to some I USED to work for.  Thanks,

-b

On Tue, 2004-02-10 at 13:21, dotsecure@hushmail.com wrote:
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> Another Low Blow from Microsoft.
> 
> Within the last few weeks at our company we have been doing testing to
> find out total number of patched machines we have against the latest
> Messenger Service Vulnerability. After checking few thousand computers
> we have found several hundred were still affected even though patch has
> been applied. We have scanned with Retina, Foundstone and Qualys tools
> which they all showed as VULNERABLE, however when we scanned with Microsoft
> Base Security Analyzer it showed as NOT VULNERABLE. This was at first
> confusing; one would think an assessment tool released by the original
> vendor would actually be accurate. On the flipside it really didnt make
> sense to us why would three different commercial scanners show as vulnerable
> if they are truly patched. So we decided to do the ultimate test. We
> ran messenger service exploit against the machines that MS Base Analyzer
> showed as Not Vulnerable and 3rd party vulnerability scanners that
> showed as Vulnerable. Results were as expected, machines were exploited
> and Microsoft Base Analyzer failed to detect the vulnerable machines
> properly.
> 
> We have concluded that, although the patch was installed on these machines,
>  the patch management script failed to reboot those few hundred systems,
>  therefore these machines were vulnerable until the next successful reboot.
> After a successful reboot all 3rd party tools showed the machines as
> not vulnerable and the exploit tool did not successfully exploit the
> machines.  3rd Party tool assessments were accurate the machines were
> truly vulnerable prior reboot.
> 
> Had we trusted Microsoft Base Analyzer we would still be vulnerable.
> 
> 
> To prove this, I have captured screen shots and converted them in pdf
> format for your viewing pleasure. The screenshots shows exact same scan
> conducted with  Foundstone tool and MBSA.
> 
> Screenshots: http://www.elusiveworld.com/scanshots.pdf
> 
> 
> I would love to see if there are any more like us out there who encountered
> this problem. If you had similar problems our recommendation to you do
> not fully depend on MBSA, since the tool is just as buggy as the company
> itself.
> 
> Questions comments email me at dotsecure@hushamail.com
> or Aim: Evilkind.
> 
> 
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