Remote Buffer Overflow in PSOProxy 0.91
Donato Ferrante
Application: PSOProxy
http://psoproxy.sourceforge.net/
Version: 0.91
Bug: Remote Buffer Overflow
Author: Donato Ferrante
e-mail: fdonato@xxxxxxxxxxxxx
web: www.autistici.org/fdonato
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1. Description
2. The bug
3. The code
4. The fix
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
----------------
1. Description:
----------------
Vendor's Description:
"PSOProxy is a web server application designed to work with the
Gamecube web browser. Its main purpose is to allow Phantasy Star Online
snapshot files to be copied to a PC and converted to a common image
file format."
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
------------
2. The bug:
------------
The server is not able to manage big input strings. In fact it will
have a buffer overflow.
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-------------
3. The code:
-------------
To test the vulnerability send to the server a string like:
GET /aaaa[ 942 of a ]aaaa HTTP/1.1
or:
GET aaaa[ 942 of a ]aaaa HTTP/1.1
or:
aaaa[ 1035 of a ]aaaa
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
------------
4. The fix:
------------
No fix.
The vendor has not answered to my signalations.
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx