Vulnerabilities 2008

PR07-12 Cross-domain redirect on Sun Java System Identity Manager 6.0/7.x

• Advisory publicly released: Tuesday, 8 January 2008
• Vulnerability found: Monday, 11 June 2007
• Vendor informed: Monday, 18 June 2007
• Severity level: Medium

• Credits
  Jan Fry and Adrian Pastor of ProCheckUp Ltd (www.procheckup.com)
  
  ProCheckUp thanks Sun for working with us.
• Description
  Sun Java System Identity Manager is vulnerable to cross-domain redirects within the "nextPage" parameter processed by the "/idm/user/login.jsp" server-side script.
• Proof of concept
  The provided PoC URLs redirect users to a third-party site (procheckup.com in this case) after a successful logon:
  
  https://target.tld/idm/user/login.jsp?nextPage=http://procheckup.com
  
  https://target.tld/idm/user/login.jsp?nextPage=http://%70%72%6f%63%68%65%63%6b%75%70%2e%63%6f%6d
• How to fix
  http://sunsolve.sun.com/search/document.do?assetkey=1-26-103180-1
• Consequences
  Attackers can redirect victim users to third-party sites after a successful logon. Such behaviour can help attackers perform phishing attacks.
  
  The following attack scenario has been provided:
  
  1. Victim user is emailed a specially crafted URL
  
  2. Victim user trusts the URL because it contains the legitimate domain name and the browser reports a valid SSL certificate
  
  3. Users logs in successfully
  
  4. User is redirected to a malicious third-party site where he/she is asked to re-enter his/her credentials because an "authentication failure" has ocurred
  
  5. User credentials are then forwarded to a third-party site and captured by the attacker
• Successfully tested on
  {att:bold}- Server environment{att:/bold}
  
  Sun Java System Identity Manager 6.0 (20061212 SP 2)
  
  Apache-Coyote/1.1
  
  Apache Tomcat/5.0.28
  
  
  
  {att:bold}- Client environment{att:/bold}
  
  Microsoft Internet Explorer 7.0.5730.11
  
  Sun has confirmed the following products to be affected by this issue:
  
  Sun Java System Identity Manager 6.0, Sun Java System Identity Manager 7.0, Sun Java System Identity Manager 7.1
• BID
  27214
• References
  

  
  http://www.procheckup.com/Vulnerabilities

  
  
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