Bugtraq mailing list archives
Re: Jetty Session ID Prediction
From: Michal Zalewski <lcamtuf () dione ids pl>
Date: Mon, 5 Feb 2007 20:42:14 +0100 (CET)
On Mon, 5 Feb 2007, NGSSoftware Insight Security Research wrote:
Jetty generates a 64-bit session id by generating two 32-bit numbers in this way, so we end up with an encoded 64-bit integer. By decoding the integer and splitting it into its two component 32-bit integers, we can easily brute-force the generator's internal state.
Why on earth would you want to brute-force it? http://www.springerlink.com/content/9jkp3179mj6fwh6m/s http://dsns.csie.nctu.edu.tw/research/crypto/HTML/PDF/C89/138.PDF Cheers, /mz
Current thread:
- Jetty Session ID Prediction NGSSoftware Insight Security Research (Feb 05)
- Re: Jetty Session ID Prediction Amit Klein (Feb 05)
- Re: Jetty Session ID Prediction Michal Zalewski (Feb 05)
- Re: Jetty Session ID Prediction Amit Klein (Feb 06)
- Re: Jetty Session ID Prediction Michal Zalewski (Feb 06)
- Re: Jetty Session ID Prediction Amit Klein (Feb 06)
- <Possible follow-ups>
- Re: Jetty Session ID Prediction Chris Anley (Feb 06)
- Re: Jetty Session ID Prediction Amit Klein (Feb 06)
- Re: Jetty Session ID Prediction Chris Anley (Feb 07)
- Re: Jetty Session ID Prediction Michal Zalewski (Feb 06)
- Re: Jetty Session ID Prediction Amit Klein (Feb 06)