Black Hat USA: New Tool for Silent EV SSL Session Hijacking Unveiled

If you think you're safe from man-in-the-middle (MITM) attacks as long as you're visiting an Extended Validation SSL (EV SSL) site, then think again: Researchers will release a new tool at Black Hat USA later this month that lets an attacker hack into a user's session on an EV SSL-secured site. Mike Zusman and Alex Sotirov -- who in March first demonstrated possible MITM attacks on EV SSL at CanSecWest -- will release for the first time their proxy tool at the Las Vegas conference, as well as demonstrate variations on the attacks they have discovered. The Python-based tool can launch an attack even with the secure green badge displaying on the screen: "It doesn't alert the user that anything fishy is going on," says Zusman, principal consultant at Intrepidus.

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