SMC7004VB sensitive information leak

["Alexander Müller" <alexander.mueller () electronic-security de>]

:: Advisory
 
Vulnerable: SMC7004VB sensitive information leak
Found: July 25th 2003
Vendor: SMC
Vendor notified: August 15th 2003
Vendor response: Answered but is on vacation.
Public release: August 31th 2003
 
Vulnerability:
 
An incorrect configuration in the SMC7004VB router allows you
to steal usernames and passes.
You can also use the IP without spoofing.
 
Some days ago, I scanned the IP of a teammember and LANguard
detected an installed proxy.
I tried to visit the homepage of this proxy...
But there was none. I used the proxy and opened the page again.
A saw a loginscript and tried some passes (username isn't required).
I tested some passes but the proxy didn't block.
Therefore I started a Bruteforceattack and after this I
noticed, the proxy did not block after thousands of passes.
I aborted this test.
 
That was the proof that you can get the pass with a stupid
working attack
 
Alexander Müller
Electronic Security
www.Electronic-Security.de
 
Thanks to: mo (Kryptocrew.de), Fabian Becker (Electronic Security)

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