Bad russian exit node attacks connections to Wikipedia

I detected a man-in-the-middle attack due to a bad exit node.

While connecting encryptedly to a web page of Wikipedia, the TorBrowser produces a SSL certificate warning.

Name of the exit node: Unnamed IP address: 176.99.10.92 Location: Russia

CN: main.authority.com O: Main Authority OU: Certificate Management

Issued on: 03/14/2013 Expires on: 03/14/2014

SHA1 fingerprint: 0C:FF:4C:A3:5E:F3:A7:64:20:1F:55:0B:32:3F:96:81:91:65:0F:ED MD5 fingerprint: 65:EE:3C:09:75:0D:E5:32:22:2F:0B:3C:7D:8C:A4:72