Home page logo
/

fulldisclosure logo Full Disclosure mailing list archives

Re: Windows Command Processor CMD.EXE Buffer Overflow
From: offset () galvanet com
Date: Mon, 23 Oct 2006 16:21:14 +0000 (UTC)

This works on Windows SP2 : The system doesn't reply "The filename or extension is too long."
but cmd crash.

----- Tillmann Werner <tillmann.werner () gmx de> wrote:
Luis,

Tried it on Win2k3 SP1:
C:\Documents and Settings\Administrator>%COMSPEC% /K
"dir\\?\AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
A AAAA

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
A AAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
System replied:
The filename or extension is too long.


YEah! Buffer Overflow Windows XP SP2

I Hill debug this.

What makes you think there is a buffer overflow? I'd say the 'dir'
command 
reports an error for parameters beyond 256 chars. Just plain error
handling, 
not a security issue, or am I missing something?

Tillmann

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/


  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]
AlienVault