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SSL/TLS vulnerability
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SSL/TLS vulnerability
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Topic: SSL/TLS vulnerability (Read 3186 times)
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Hack_80
Jr. Member
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Posts: 86
Black buck
SSL/TLS vulnerability
«
on:
August 26, 2012, 04:20:12 AM »
Hi..
Through Nessus scanner i am finding lost of vulnerability related to SSL/TLS
Vul : SSL/TLS Protocol Initialization Vector Implementation Information Disclosure Vulnerability on w2k3 & 2008 servers as well
I had applied all the mentioned solution from Microsoft of disabling the SSLv2 and TLS 1.but still struggling to fix the same.
Kindly suggest the solutions
Thanks
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Jamie.R
Sr. Member
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Posts: 429
Re: SSL/TLS vulnerability
«
Reply #1 on:
August 26, 2012, 07:59:57 AM »
You should try and located the nessus nassel script that is identifying the issue and understand why its finding it. As it could be finding the issue in certain way and until you understand how its finding the issue you can not fix it.
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OSWP | Hackingdojo Nidan | eCPPT
ajohnson
Recruiters
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aka dynamik
Re: SSL/TLS vulnerability
«
Reply #2 on:
August 26, 2012, 09:51:56 AM »
http://blog.zoller.lu/2011/09/beast-summary-tls-cbc-countermeasures.html
It looks like prioritizing non-CBC ciphers (RC4) is the way to address this.
There's some more Microsoft-centric discussion here:
http://social.technet.microsoft.com/Forums/en-US/winserversecurity/thread/6cc4d577-fb22-4765-ad91-0c4ad46474fd
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Hack_80
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Black buck
Re: SSL/TLS vulnerability
«
Reply #3 on:
August 28, 2012, 07:11:29 AM »
Hi johnson,
tried the given solution still the vulnerability persist.
Also in tool i find below details of vulnerability
Plugin Output Negotiated cipher suite: AES128-SHA|TLSv1|Kx=RSA|Au=RSA|Enc=AES(128)|Mac=SHA1
need help to understand the nessus findings
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ajohnson
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Re: SSL/TLS vulnerability
«
Reply #4 on:
August 28, 2012, 07:32:17 AM »
I'm not really familiar with this issue. It's possible that Nessus requires you to disable the ciphers that use AES. If this is a test system, try it out and see what your findings are.
You may need to decide internally if prioritizing RC4 is sufficient, or if eliminating the Nessus finding takes priority.
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