full-disclosure - mimicboard2

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Date: Thu Sep  8 16:43:03 2005
From: se_cur_ity at hotmail.com (Morning Wood)
Subject: mimicboard2

      - EXPL-A-2005-013 exploitlabs.com Advisory 042 -

                                - mimicboard2 -

AFFECTED PRODUCTS

mimicboard2 #086 < and lower
http://www.chitta.com/nobu/download/#mimic2

OVERVIEW

Mimic2 is a html open forum type of blog, tailored in
particular to the Japaneese market ( and is very popular )

DETAILS

1. XSS
Mimic2 does not properly filter malicious script content.
XSS my be inserted in the name, title and comment sections,
and is persistant in nature.
The malicious script is the rendered upon visitation and 
is executed in the context of the users brower.

2. information disclosure
http://[host]/mimic2.dat is viewable via the webroot and has
no protection by default. mimic2 stores data in this file
consisting of:
a. administrator passwords
b. user information including refer ip address, message content
   and password if one was used in the post.

POC

1.
input malicious iframe script into the
comment, title and name  sections.
http://[host]/mimic2.cgi
eg:<iframe src="[attacker url]"></iframe>

2.
the password(s) are easily crackable as evidenced by: 

mimic2.dat

echo mimic board2:Fdtr67zbisXVA:13 >mimic2.txt

john -w:password.lst mimic2.txt
Loaded 1 password (Standard DES [24/32 4K])
password         (mimic board2)

SOLUTION:

vendor contact:
nobu@...imaginet.ne.jp Aug 24, 2005
no response as of Sept 8, 2005

Credits

This vulnerability was discovered and researched by 
Donnie Werner of exploitlabs

mail:   wood at exploitlabs.com
mail:   morning_wood at zone-h.org

web: http://exploitlabs.com
web: http://zone-h.org