APG Classmaster Workstation Windows SMB share access vulnerability

[Alex Garrett <alex () exploitthissite org>]

Greetings,

This vulnerability affects (I believe) all APG Classmaster Workstation
versions. It remains a problem as an attacker can access shares with full permissions over a LAN.

An attackers needs to issue a simple command in an MSDOS prompt (using the net windows application), mapping an account 
to a specified drive, as below:

net use [drive]: \\[server]\[user]$

A DIR command at this stage gives an access denied error. Knowing the name of the files area (which will be the same 
for each user) can lead to changing directory to that folder...

cd 'My files'

An attacker now has full permissions on a selected users 'my files' area.



Alex Garrett