[UNIX] Open WebMail "background" Magic Info

From: support@securiteam.com
Date: 11/24/02

  • Next message: support@securiteam.com: "[UNIX] Multiple Incorrect Permissions in QNX" 
    From: support@securiteam.com
To: list@securiteam.com
Date: 24 Nov 2002 16:39:06 +0200

    The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
    - - promotion

    Beyond Security would like to welcome Tiscali World Online
    to our service provider team.
    For more info on their service offering IP-Secure,
    please visit http://www.worldonline.co.za/services/work_ip.asp
    - - - - - - - - -

      Open WebMail "background" Magic Info
    ------------------------------------------------------------------------

    SUMMARY

     <http://openwebmail.org/> Open WebMail is a perl web mail program that
    runs on UNIX operational systems. A vulnerability in the product allows
    remote attackers to reveal the user who is running the Open WebMail
    process.

    DETAILS

    Vulnerable systems:
     * Open WebMail version 1.71

    When you enter an invalid username (user that doesn't exist on the
    system), the WebMail returns to you a "very nice screen" like it: 

    ---
Open WebMail ERROR 
user does not exist 
Open WebMail version 1.71 
---
Now if you try to copy the information with your mouse all message that 
returned to you...
---
Open WebMail ERROR 
user does not exist 
euid=0, egid=80 80 80, mailgid=6 
Open WebMail version 1.71 
---
As can be seen, very sensitive information regarding the program is 
revealed.
ADDITIONAL INFORMATION
The information has been provided by  <mailto:db-bugtraq@freebsdbr.com.br> 
FreeBSDbr Bugtraq DataBase.
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