####################################################################### Luigi Auriemma Application: Intermate WinIPDS http://www.intermate.com/ipdssoftware Versions: <= Release 3.3 Revision G52-33-021 Platforms: Windows Bugs: A] directory traversal in web administration B] Denial of Service versus the IPDS port Exploitation: remote Date: 12 Feb 2008 Author: Luigi Auriemma e-mail: aluigi (at) autistici (dot) org [email concealed] web: aluigi.org ####################################################################### 1) Introduction 2) Bugs 3) The Code 4) Fix ####################################################################### =============== 1) Introduction =============== WinIPDS is a commercial AFP (Advanced function printing) and IPDS (Intelligent Printer Data Stream) print server for Windows. ####################################################################### ======= 2) Bugs ======= -------------------------------------------- A] directory traversal in web administration -------------------------------------------- WinIPDS includes a web server for the remote administration of the service. This web interface is vulnerable to a classical directory traversal attack exploitable with both the plain slash and backslash delimiters allowing an attacker to download any file from the disk on which is installed the program. ----------------------------------------- B] Denial of Service versus the IPDS port ----------------------------------------- 5001 is the port used by the IPDS service for the remote printing of the files. The problem here is that packets smaller than the size they should have cause CPU at 100% and the inability to handle the printing commands of the users. The packet's types which cause this effect are 3, 5, 7, 13, 14 and 15. ####################################################################### =========== 3) The Code =========== A] GET /../../../../../boot.ini HTTP/1.0 or POST /..\../..\../..\boot.ini HTTP/1.0 B] http://aluigi.org/poc/winipds.txt nc SERVER 5001 -v -v -w 3 < winipds.txt ####################################################################### ====== 4) Fix ====== No fix ####################################################################### --- Luigi Auriemma http://aluigi.org