BugTraq
Regular Expression Denial of Service Sep 10 2009 02:23PM
Alex Roichman (Alexr Checkmarx com) (3 replies)
Checkmarx Research Lab presents a new attack vector on Web applications. By
exploiting the Regular Expression Denial of Service (ReDoS) vulnerability an
attacker can make a Web application unavailable to its intended users. ReDoS
is commonly known as a ?bug? in systems, but Alex Roichman and Adar Weidman
from Checkmarx show how serious it is and how using this technique, various
applications can be ?ReDoSed?. These include, among others, Server-side of
Web applications and Client-side Browsers. The art of attacking the Web by
ReDoS is by finding inputs which cannot be matched by Regexes and on these
Regexes a Regex-based Web systems get stuck.

For further reading:
http://www.checkmarx.com/NewsDetails.aspx?id=23&cat=3

Alex Roichman
Chief Architect, Checkmarx Ltd. 
Mobile: +972 54 774 5198   Fax:  +972-3-6870794   Website: www.Checkmarx.com

[ reply ]
Re: Regular Expression Denial of Service Sep 13 2009 07:35PM
Pavel Kankovsky (peak argo troja mff cuni cz)
Re: Regular Expression Denial of Service Sep 13 2009 06:32PM
Pavel Kankovsky (peak argo troja mff cuni cz)
Re: Regular Expression Denial of Service Sep 11 2009 04:21PM
Gadi Evron (ge linuxbox org) (1 replies)
Re[2]: Regular Expression Denial of Service Sep 11 2009 05:06PM
Thierry Zoller (Thierry zoller lu) (2 replies)
Re: Re[2]: Regular Expression Denial of Service Sep 11 2009 09:35PM
Jeffrey Walton (noloader gmail com)
Re: Regular Expression Denial of Service Sep 11 2009 09:10PM
Gadi Evron (ge linuxbox org)


 

Privacy Statement
Copyright 2010, SecurityFocus