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osTicket v1.6 RC4 Admin Login Blind SQLi
From: Adam Baldwin <adam_baldwin () mail ngenuity-is com>
Date: Fri, 26 Jun 2009 22:12:15 -0700 (PDT)

nGenuity Information Services - Security Advisory

   Advisory ID: NGENUITY-2009-007 osTicket Admin Login Blind SQL Injection
   Application: osTicket v1.6 RC4
        Vendor: osTicket
Vendor website: http://www.osticket.com
        Author: Adam Baldwin (adam_baldwin () ngenuity-is com)

  I. BACKGROUND
"osTicket is a widely-used open source support ticket system. It seamlessly integrates inquiries created via email and web-based forms into a simple easy to use multi-user web interface. Easily manage, organize and archive all your support requests and responses in one place while providing your
    clients with accountability and responsiveness they deserve." [1]

  II. DETAILS
osTicket prior to v1.6 RC5 fails to validate / escape staff usernames which can be abused to execute a blind sql injection attack by an unauthenticated
    attacker.

The vendor has provided a new release v1.6 RC5 which addresses this vulnerability. They have also provided patching instructions [2] should you be unable to perform
    a full upgrade at this time.

    One sample attack string might look similar to the following:
'+(SELECT IF(SUBSTRING(passwd,1,1)=CHAR(48),BENCHMARK(1000000,SHA1(1)),0) passwd
    FROM ost_staff where staff_id=1) and '1'='1

  III. REFERENCES
    [1] - http://www.osticket.com
    [2] - http://osticket.com/forums/project.php?issueid=118

  IV. VENDOR COMMUNICATION
    3.25.2009 - Vulnerability Discovery
    3.25.2009 - Vendor notification & initial vendor response
    6.26.2009 - Vendor releases fix in osTicket v1.6 RC5

Copyright (c) 2009 nGenuity Information Services, LLC


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