IBM Rational ClearQuest Web - Cross Site Scripting

    ..........MMMMMMMM.      ..... .      ..
    ........7MMMMMMMMMM  . .......... .  ...
    ........OMMMMMMMMMM.....................
    ........8MMNMMMMMMMMMMMMMN..............
    ........NMMMMMMMMMMMMMNNNND.............
    ....,DNMMMMMMMMMMMMMMMNDDD..............
    ...DNNNNDMMMMMMMMMMMMMMNI...............
    ...D8DDNN7MNNMMMMMMMMMMM................
    .....D8DN8NMMMMMMMMMMMMMMI..............
    ........8MMMNMMMMMMMMMMMMMM.............
    ...........MMMMMMMMMMMMMMMMMMM..........
    ........MMMMMMMMMMMMMMMMMMMMMMMM........
    .......MMMMMMMMMMMMMMMMMMMMMMMMMM.......
    ......MMMMMMMMMMMMMMMMMMMMMMMMMMMM,.....
    .....MMMMMMMMMMMMMMMMMMMMMMMMMMMMM,.....
    .....MMMMMMMMMMMMMMMMMMMMMMMMMMMMMM.....
    ....MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM.....
    ....MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM ....
    ...MMMMMMMMMMMMMMMMMMMMMMMMMMMMNMMM. ...
    ...MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM:....
    ...MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMD....
    ...MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMN....

Vendor: IBM / http://www.ibm.com
Affected Products: Rational ClearQuest Web / Version 7.0.0.0
Vulnerability: Cross Site Scripting
Risk: HIGH

Vendor communication: None.

Overview:
Rational ClearQuest provides flexible workflow management, defect and
change tracking across the application life cycle for better insight,
predictability and control.

Description:
The flaw was found while logging a defect for another application, only
to find out Cq was also vulnerable.

Whilst logging a defect, upload a txt file as an attachment to the
defect. Put whatever <script></script> you wish into the txt file and
it will execute when another user tries to open the attachment.
This could lead to session details (cqwebsession, JSESSIONID etc) being
disclosed to a third party and used to hijack the users session.
Finally, the Cross Site Scripting vulnerability also affects the summary
page, which is PHProjekt's index page.

Credit:
Flaw found by James Clarke / clark0r / 15.03.2007
http://www.clarkee.co.uk