Vulnerability found:
17 July 2010

Vendor informed:
19 July 2010

Severity level:

Credits: Richard Brain of ProCheckUp Ltd (

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 -

Proof of concept:
1) The following demonstrate the reflective XSS flaws'%3balert(1)//&user=Self+Help\'%3balert(1)//"><script>alert(1)</script>><script>alert(1)</script>&user=Self%20Help

Works on IE - login screen referrer XSS"><script>alert(1)</script>

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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