Account Options

  1. Sign in
The old Google Groups will be going away soon, but your browser is incompatible with the new version.
Google Groups Home
« Groups Home
comp.os.vms
+ new post
About this group
Subscribe to this group
This is a Usenet group - learn more
Message from discussion DEFCON 16 and Hacking OpenVMS
The group you are posting to is a Usenet group. Messages posted to this group will make your email address visible to anyone on the Internet.
Your reply message has not been sent.
Your post was successful
 
From:
To:
Cc:
Followup To:
Add Cc | Add Followup-to | Edit Subject
Subject:
Validation:
For verification purposes please type the characters you see in the picture below or the numbers you hear by clicking the accessibility icon. Listen and type the numbers you hear
 
patrick jankowiak  
View profile  
 More options Aug 12 2008, 8:44 pm
Newsgroups: comp.os.vms
From: patrick jankowiak <e...@swbell.net>
Date: Tue, 12 Aug 2008 19:44:55 -0500
Local: Tues, Aug 12 2008 8:44 pm
Subject: Re: DEFCON 16 and Hacking OpenVMS
Print | View thread | Show original | Report this message | Find messages by this author

samp...@gmail.com wrote:
>>> 1. A format string vulnerability in the FINGER client (VAX only). The
>>> example shellcode is stored on a remote system's .plan file and forces
>>> the victim FINGER client to modify SYSUAF.
>> Is this with DEC TCPIP services or is it something to do with the
>> Multinet finger vulnerability ?

> It appears to be something separate, since it seems to have to do with
> a format string
> vulnerability. Basically someone puts a bunch of % strings and
> shellcode in their .plan
> on a remote host, fingers that user from the target host, and the
> FINGER client executes
> the shellcode due to the format string vulnerability in the client.

>>> 2. A CLI buffer overflow on Alphas. Basically any input over 511
>>> characters causes an overflow, it seems to be possible to have a
>>> privileged process execute arbitrary code.
>> Can you explain this one in a bit more detail ?
>> Is this an attack against DCL itself, images installed with privileges
>> or something else ?

> I think this might be a DCL issue, it seems to work across a number of
> different images. Not had a chance to play with this as my own VMS
> box is down at the moment.

> Sampsa

I would have thought a CLI overflow to have been tried by at least a few
at DEFCON9 because the system automagically created service-rich user
accounts with of course DCL which the hackers were then free to abuse.

We were not scrutinizing buffers however and any such overflow may in
our case have done nothing harmful (by luck or design). I think it was
version 7.1-? if it makes a difference. Did the gentleman specify any
versions?

Patrick J


 
You must Sign in before you can post messages.
To post a message you must first join this group.
Please update your nickname on the subscription settings page before posting.
You do not have the permission required to post.
Create a group - Google Groups - Google Home - Terms of Service - Privacy Policy
©2012 Google