14% of SSL certificates signed using vulnerable MD5 algorithm

Monday, 5 January 2009, 12:09 AM EST

Netcraft's SSL Survey shows that 14% of valid third party SSL certificates have been issued using MD5 signatures — an algorithm that has recently been demonstrated to be vulnerable to attack by producing a fake certificate authority certificate signed by a widely-trusted third party certificate authority.

The researchers achieved this by producing a hash collision — they submitted valid certificate requests to a certificate authority (CA), while producing a second certificate that had the same signature but entirely different details. When the CA signed the valid certificate, the signature applied also to the invalid certificate, allowing the researchers to spoof any secure website that they liked. This attack is the first practical use against SSL of already-known attacks against the MD5 checksum algorithm.

At Netcraft.

[ Read more ]




Spotlight

Proactive real-time security intelligence: Moving beyond conventional SIEM

Discussions about security intelligence still focus primarily around conventional reactive SIEM. Security pros need to move from this reactive model to proactively using this security intelligence to protect their businesses.


Weekly newsletter

Reading our newsletter every Monday will keep you up-to-date with security news.
  



Daily digest

Receive a daily digest of the latest security news.
  
DON'T
MISS

Fri, Aug 28th
    COPYRIGHT 1998-2015 BY HELP NET SECURITY.   // READ OUR PRIVACY POLICY // ABOUT US // ADVERTISE //