Wednesday, April 16, 2014

Audit: don't only focus on heartbleed issue

I received the info about heartbleed issue on Apr 8 andI found out SLES-11 are using OpenSSL 0.9.8 branch code, which is not vulnerable to heartbleed issue. Then I patched it for OpenSuSE 13.1/12.3. It was easy because the patch was already there.

After an exciting and crazy week. People are getting calm and plan or already start to doing audit on their system. But there are something you might miss. The older version of OpenSSL( like 0.9.8) might not affected by heartbleed issue but it doesn't mean you are secure. Don't forget the old OpenSSL are still vulnerable to BEAST( 2011), CRIME( 2012), Lucky-thirteen( 2013). I do believe Lucky-thirteen is far more dangerous than heartbleed, we just don't know. Once you start the audit, plz upgrade the OpenSSL to the latest version. If you are using 0.9.8, plz upgrade to 0.9.8y, which is not vulnerable to Lucky-13 issue.

Fix heartbleed issue for website is much easier than the networking devices( Firewall, UTM, SSL/IPSEC VPN, etc) and the 3rd-party software. This definitely gonna impacting for long term.

I'd like to share some materials( you might already known).

Heartbleed issue technical analysis:

I totally agree with the last point from this article:

To these major companies are highly reply on the open source TLS implementation( OpenSSL, GnuTLS, etc) should give them funding, to make them more secure and stable.

EFF is always right about how to aginst massive surveillance by agencies
like NSA. PFS is so fuc*ing important especially today. I think we should use TLS 1.2.

Performance hit probably is one of reasons that PFS is so important but the fact is only afew websites using it:

Test top-1m websites:


Client PoC:

One more thing, to those who are still complaining about the security of free/open source software is worse than closed software. Well, I don't want to argue here. But, I'm giving you type of people 3 options:
1, Join the community, help the FOSS community to do code audit.
2, Make some donations to the organizations who really cares about your privacy and do the code audit for us. Like EFF, I'm fuc*ing pround of I'm member of EFF.....
3, G O   H O M E   A N D   F U C K   Y O U R S E L F   ! ! !

No comments: