Symantec PGP Universal Web Messenger Unauthorized Access

`Vulnerability title: Unauthorised Access To Other Users Email Messages  
in Symantec PGP Universal Web Messenger  
CVE: CVE-2014-1643  
Vendor: Symantec  
Product: PGP Universal Web Messenger  
Affected version: All Prior to 3.3.2  
Fixed version: 3.3.2  
Reported by: Richard O'Donnell  
  
Details:  
  
Authenticated Web Messenger users are able to view other users email  
messages, by following these steps:  
  
  
1) Log into the Web Messenger console  
2) View the list of sent emails  
3) Click on any of the sent emails  
4) Click on the `Print' option and then copy the URL from the page that  
appears.  
  
  
The URL will look similar to this:  
  
https://x.x.x.x/b/ps.e?sid=BoomerangMail:72e56j3a-a3r6-5d43-6ef4-aae9c23422ca&showScrollbars=true&dialogId=SentPrintableView1747635619&OWASP_CSRFTOKEN=M22N-J4L3-R3T2-P1AZ-TP1Q-TEFG-IUGH-N6EF  
  
  
5) Using this URL, brute-force the following part of the `sid' parameter:  
  
72e56j3a-a3r6-5d43-6ef4-aae9c23422ca  
  
  
6) Upon identifying a valid value, access to the corresponding email  
message will be obtained.  
  
  
Although there is a risk of obtaining unauthorised access to another  
users email, the likelihood of successfully brute-forcing a correct  
`sid' value is considered low, due to its complexity.  
  
  
It is also noted that encryption of messages was not enabled when this  
issue was identified and no additional testing was performed with this  
option enabled.  
  
  
Further details at:  
http://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-1643/  
  
  
Copyright:  
Copyright (c) Portcullis Computer Security Limited 2014, All rights  
reserved worldwide. Permission is hereby granted for the electronic  
redistribution of this information. It is not to be edited or altered in  
any way without the express written consent of Portcullis Computer  
Security Limited.  
  
Disclaimer:  
The information herein contained may change without notice. Use of this  
information constitutes acceptance for use in an AS IS condition. There  
are NO warranties, implied or otherwise, with regard to this information  
or its use. Any use of this information is at the user's risk. In no  
event shall the author/distributor (Portcullis Computer Security  
Limited) be held liable for any damages whatsoever arising out of or in  
connection with the use or spread of this information.  
`