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Home arrow SecurityAlert Database

Arrow  Topic :

ASPScriptz Guest Book 2.0 XSS


Arrow  SecurityAlert : 1056
Arrow  CVE : CVE-2006-2882
Arrow  SecurityRisk : Low  Security Risk Low  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Exploit Available : Yes
Arrow  Credit : omnipresent email it
Arrow  Published : 08.06.2006

Arrow  Affected Software : ASPScriptz Guest Book 2.0



Arrow  Advisory Content :  

------------------------------------------------------------------

- ASPScriptz Guest Book 2.0 Remote XSS -

-= http://colander.altervista.org/advisory/ASzGB.txt =-

------------------------------------------------------------------

-= ASPScriptz Guest Book 2.0 =-

Omnipresent

May 18, 2006

Vunerability(s):

----------------

XSS Attack

Product:

--------

ASPScriptz Guest Book 2.0

Vendor:

--------

http://www.aspscriptz.com

Description of product:

-----------------------

Guesbook is a free open source guestbook.Simply download it and unzip it
and upload it into the root directory of your

server.It is working now.Smilies support it also added in this
version.Admin can disable or enable HTML support.Admin

section is also included.

Vulnerability / Exploit:

------------------------

From line 109 to line 113, there are the vulnerable code:

[...]

GBOOK_UNAME = REQUEST.FORM("GBOOK_UNAME")

GBOOK_EMAIL = REQUEST.FORM("GBOOK_EMAIL")

GBOOK_CITY = REQUEST.FORM("GBOOK_CITY")

GBOOK_COU = REQUEST.FORM("GBOOK_COU")

GBOOK_WWW = REQUEST.FORM("GBOOK_WWW")

[...]

As you can see, the variables:

GBOOK_UNAME

GBOOK_CITY

GBOOK_COU

are not properly sanitized before being used, so a remote attacker can
inject arbitrary HTML code.

So, the programmer for delete the bug can modify the source code with a
simple replace().

PoC / Proof of Concept of SQL Injection:

----------------------------------------

Not very hard.. :D Just put <script>alert("XSS")</script> in the Name, City
and Country fields.

Vendor Status

-------------

[2006/06/05] Vendor Informed!

Credits:

--------

omnipresent

omnipresent (at) email (dot) it [email concealed]




Arrow  Feedback :

If you have additional information or notice any errors regarding this security advisory, please use contact form or email us at info()securityreason()com.
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