Vulnerability in TLS/SSL Could Allow Spoofing
After a few months of initial public demonstration of SSL renegotiation vulnerability, there was no widely used exploit/attack. Unfortunately, there is (was) only a matter of time when something like this will happen. Reading Microsoft security advisory 977377, one can speculate that this will happen soon. Since this is not only Microsoft “problem” (SSL and TLS are used in other OS-es), other companies are working to find a solution to.
Microsoft has offered a workaround (disabling SSL/TLS renegotiation) for IIS servers.If you are interested, please read KB article 977377 . Be aware that after you apply this workaround some application will not work as expected (more on this in KB article).