lawful intercept/IOS at BlackHat DC, bypassing and recommendations

Christopher Morrow morrowc.lists at gmail.com
Thu Feb 4 14:27:15 CST 2010


On Thu, Feb 4, 2010 at 3:19 PM, Gadi Evron <ge at linuxbox.org> wrote:
>
> "That peer-review is the basic purpose of my Blackhat talk and the associated paper. I plan to review Cisco’s architecture for lawful intercept and explain the approach a bad guy would take to getting access without authorization. I’ll identify several aspects of the design and implementation of the Lawful Intercept (LI) and Simple Network Management Protocol Version 3 (SNMPv3) protocols that can be exploited to gain access to the interface, and provide recommendations for mitigating those vulnerabilities in design, implementation, and deployment."


this seems like much more work that matt blaze's work that said: "Just
send more than 10mbps toward what you want to sneak around... the
LEA's pipe is saturated so nothing of use gets to them"

<http://www.crypto.com/blog/calea_weaknesses/>

Also, cisco publishes the fact that their intercept caps out at 15kpps
per line card, so... just keep a steady 15kpps and roll on.

-chris




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