A pair of researchers recently created a tool called Browser Exploit Against SSL/TLS, or BEAST, which enables an...
attacker to intercept and decrypt SSL cookies on the same network by performing a "blockwise-adaptive chosen-plaintext" attack on encrypted packets. Does this BEAST SSL tool give attackers a powerful new weapon to break SSL/TLS encryption; how much of a risk does it pose to enterprises, and are there any mitigation tactics that can be put in place?
Ask the Expert!
Have questions about enterprise information security threats for expert Nick Lewis? Send them via email today! (All questions are anonymous.)
Before we assess the threat posed by the BEAST SSL tool, let's examine the context. Researchers Juliano Rizzo and Thai Duong expanded on Bruce Schneier and David Wagner’s analysis (.pdf) from 1999. In looking at SSL 3.0, Schneier and Wagner found that, despite several "minor" flaws, including the one mentioned above, SSL was still largely secure enough for broad use.
Dig Deeper on SSL and TLS VPN Security
Related Q&A from Nick Lewis
Conficker malware was found in a German nuclear power plant computer system. Expert Nick Lewis explains the possible impact of malware infections of ...continue reading
OneSoftPerDay, an adware program can install backdoors on PCs, is able to avoid detection from antimalware tools. Expert Nick Lewis explains how to ...continue reading
The hot-patching feature in Windows servers is vulnerable to attacks from APT groups. Expert Nick Lewis explains what hot patching is and how to ...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.