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 VPN security
Related Q&A from Nick Lewis
Enterprises have many options for email security best practices, ranging from deploying email security protocols to educating end users on the ... Continue Reading
Cyberattacks often begin with a port scan attack, which attackers use to find exploitable vulnerabilities on targeted systems. Learn how they work ... Continue Reading
Monitoring process memory is one way to combat fileless malware attacks. Here's what you can do to protect your network against these campaigns. 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.