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S21SEC-017-en.txt

S21SEC-017-en.txt
Posted May 28, 2003
Authored by Ramon Pinuaga Cascales | Site s21sec.com

S 2 1 S E C Advisory 017 - The Vignette Content Management and Application Portal software is vulnerable to a remote attacker accessing the SQL database without authentication by modifying a cookie. Affected versions: StoryServer 4 and 5 and Vignette V/5.

tags | advisory, remote
SHA-256 | 71e86e2b59d1310641859df7e5da7efd9c2cdd6dcc72e7971a5e708a03dbdc31

S21SEC-017-en.txt

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###############################################################
ID: S21SEC-017-en
Title: Vignette /vgn/legacy/save SQL access
Date: 15/03/2003
Status: Vendor contacted and solution available
Scope: Execution of SQL SELECT calls
Platforms: All
Author: rpinuaga
Location: http://www.s21sec.com/es/avisos/s21sec-017-en.txt
Release: External
###############################################################

S 2 1 S E C

http://www.s21sec.com

Vignette /vgn/legacy/save SQL access


About Vignette
--------------

Vignette develops Content Management and Application Portal Software.


Description of vulnerability
----------------------------

Vignette Software installs by default some help applications under de /vgn web directory.

One of this utilities is the Vignette Legacy Tool. This application is accessed through it's main template /vgn/legacy/edit. This template is protected by the [ NEEDS LOGIN ] directive and it's not accesible for unauthenticated users.

The problem is that the real job of this application is carried by the /vgn/legacy/save template, which is not protected.

The only check that is done is in the RECORD directive. But this check is easyly bypassed.

The check only looks for an vgn_creds cookie, but it does not check it's content. So what is only needed to do a succesful query is to put some random value on this cookie.

This way it's possible to do a SELECT query, over any SQL table that is accesible from the Vignette user that has access to the database.


Affected Versions and platforms
-------------------------------

This vulnerability has been tested in Vignette StoryServer 4, StoryServer 5 and Vignette V/5. But it seems that all currently avaliable versions are vulnerable.


Solution
--------

Insert a [ NEEDS LOGIN ] directive in the top of the source code for the /vgn/legacy/save template.
Vignette users should procceed to contact vignette throught the standard channels VOLS etc in order to get a solution.


Additional information
----------------------

These vulnerabilities have been found and researched by:

Ramon Pinuaga Cascales rpinuaga@s21sec.com

You can find the last version of this warning in:

http://www.s21sec.com/es/avisos/s21sec-017-en.txt

And other S21SEC warnings in http://www.s21sec.com/es/avisos/


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