KeyFax Response Management System 3.2.2.6 XSS / Information Disclosure

`PR10-17: Various XSS and information disclosure flaws within KeyFax  
response management system  
  
http://www.omfax.co.uk  
  
Vulnerability found: 25th August 2010  
  
Vendor informed:  
  
Vulnerability fixed:  
  
Severity: Medium/High  
  
Description:  
  
KeyFax response management system provides professional management of  
housing and other repairs; KeyFax is normally accessed using a web  
browser over port 80. Various KeyFax pages are vulnerable to a  
reflective XSS attacks. Other pages including the configuration file  
disclose information including the operator and SQL account passwords.  
  
Version 3.2.2.6 dated 2003-2010  
  
The following demonstrate the XSS flaws (no authentication needed):  
1) Various pages are vulnerable to XSS (IE only)  
http://target-domain.foo/keyfax32/test/response.asp?co="style%3d"x:expression(alert(1))""%20";  
  
http://target-domain.foo/keyfax32/rs/main_rs.asp?C="style%3d"x:expression(alert(1))""%20";  
  
  
Consequences:  
  
An attacker may be able to cause execution of malicious scripting code  
in the browser of a user who clicks on a link to a KeyFax response  
management system 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.  
  
---------------------------------------------------------------------------------------------------------------  
  
The following demonstrate the Information disclosure flaws (no  
authentication needed)  
  
1) Account passwords can be remotely retrieved, by knowing the path of  
the configuration file.  
  
http://target-domain.foo/KFLauncher/KF_config.xml (this also contains  
other username and password combinations like operator)  
http://target-domain.foo/KFLauncher/KFRDROL_target-domain_config.xml  
  
These contain the following information:-  
  
http://target-domain.foo/kfdataview/password.asp?user=operator&pwd=operator  
  
Provider=SQLOLEDB.1;Password=omfax;Persist Security Info=True;User  
ID=keyfax;Initial Catalog=KF_target-domain_ROL_32;Data  
Source=target-domain.foo  
  
2) Information about the web site is publically disclosed by the debug  
console.  
  
http://target-domain.foo/keyfax32/includes/debug.asp  
  
And within verbose error pages  
http://target-domain.foo/keyfax32/request_sa_fl.asp?user=.  
  
Consequences:  
  
An attacker may be able to obtain additional information on the machines  
configuration including user names and passwords, and use this  
information to gain authenticated access.  
  
  
Fix:  
  
  
References:  
  
http://www.procheckup.com/Vulnerabilities.php  
  
  
  
Credits: Richard Brain of ProCheckUp Ltd (www.procheckup.com)  
  
  
Legal:  
  
Copyright 2010 ProCheckUp Ltd. All rights reserved.  
  
Permission is granted for copying and circulating this Bulletin to the  
Internet community for the purpose of alerting them to problems, if and  
only if, the Bulletin is not edited or changed in any way, is attributed  
to ProCheckUp, and provided such reproduction and/or distribution is  
performed for non-commercial purposes.  
  
Any other use of this information is prohibited. ProCheckUp is not  
liable for any misuse of this information by any third party.  
`