You might remember the article I wrote a couple of weeks back regarding the then recently found vulnerabilities of SSL 3.0 (TLS 1.0). Well, things just got real.

• New Security Issues come to light with SSL 3.0

At the time, some researchers even went so far as to say that the vulnerability was only theoretical! Too theoretical to even worry about. The attack is described in detail:

• TLS renegotiation vulnerability (CVE-2009-3555)

It appears that the popular micro-blogging site Twitter first fell victim to the attack. The Register has the full story:

• Researcher busts into Twitter via SSL reneg hole

Now that the attack is in the wild, where are the patches?

At the time of publishing, here is where everyone is:

Open SSL

• Workaround – Removes Renegotiation (OpenSSL 0.9.8l): Limited Public Availability
• Fix (OpenSSL 0.9.8m): Code Undergoing Initial Testing

Microsoft

• IIS, SChannel, Internet Explorer: Interoperability Testing in Progress
• IIS6 and 7: Not Vulnerable to Client-Initiated Renegotiation

Cisco

• Vulnerable Products: Code Undergoing Initial Testing

F5

• Workaround – Disables Renegotiation: Limited Public Availability
• Fix: Code Undergoing Initial Testing

NSS (Mozilla/Firefox)

• TLS protocol fix: Interoperability Testing in Progress

Sun

• Vulnerable Products: Code Undergoing Initial Testing

GNU TLS

• Fix: Code Undergoing Initial Testing
• Most Applications Are Not Affected

RSA

• Vulnerable Products: Interoperability Testing in Progress/Limited Public Availability

Opera

• Fix: Code Undergoing Initial Testing

For more information and updates:

• SSL/TLS Authentication Gap – Status of Patches

News, Security CSRF, https, malicious websites, man in the middle, MITM, SSL, TLS