Bugtraq mailing list archives
Regular Expression Denial of Service
From: "Alex Roichman" <Alexr () Checkmarx com>
Date: Thu, 10 Sep 2009 17:23:15 +0300
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
Current thread:
- Regular Expression Denial of Service Alex Roichman (Sep 11)
- Re: Regular Expression Denial of Service Gadi Evron (Sep 11)
- Re[2]: Regular Expression Denial of Service Thierry Zoller (Sep 11)
- Re: Regular Expression Denial of Service Gadi Evron (Sep 11)
- Re: Re[2]: Regular Expression Denial of Service Jeffrey Walton (Sep 14)
- Re[2]: Regular Expression Denial of Service Thierry Zoller (Sep 11)
- Re: Regular Expression Denial of Service Pavel Kankovsky (Sep 14)
- Re: Regular Expression Denial of Service Pavel Kankovsky (Sep 14)
- <Possible follow-ups>
- Re: Regular Expression Denial of Service hackerwebzine (Sep 28)
- Re: Regular Expression Denial of Service Gadi Evron (Sep 11)