Multiple XSS and Authentication flaws within BMC Remedy Knowledge Management
17 July 2010
19 July 2010
Credits: Richard Brain of ProCheckUp Ltd (www.procheckup.com)
BMC Remedy Knowledge Management provides service desk analysts with a knowledge base of easy-to-find solutions and gives users self-service search options to help them resolve issues on their own. ProCheckUp has discovered that multiple Remedy Knowledge Management pages are vulnerable to reflective XSS attacks, a built in self help account allows for authentication bypass.
Version: 7.5.00 was found to be vulnerable - http://www.bmc.com/
Proof of concept:
1) The following demonstrate the reflective XSS flaws
Works on IE - login screen referrer XSS
An attacker may be able to cause execution of malicious scripting code in the browser of a user who clicks on a link to Remedy Knowledge Management based site. Such code would run within the security context of the target domain. This type of attack can result in non-persistent defacement of the target site, or the redirection of confidential information (i.e.: session IDs) to unauthorised third parties.
2) Remedy Knowledge Management is vulnerable to authentication bypass by using a built in default account. (user=Self%20Help)
The following directory requires a password to authenticate only
An attacker may be able to gain access to data held within a Remedy Knowledge Managment based site.
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