full-disclosure - Re: Windows Command Processor CMD.EXE Buffer Overflow

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Mon, 23 Oct 2006 18:07:04 +0200
From: Tillmann Werner <tillmann.werner@....de>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: Windows Command Processor CMD.EXE Buffer
	Overflow

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/