Re: Q: Impact of globbing vulnerability in ftpd

From: Crist Clark (crist.clark@globalstar.com)
Date: 04/24/01 

Date: Tue, 24 Apr 2001 09:57:33 -0700
From: "Crist Clark" <crist.clark@globalstar.com>
To: Victor Sudakov <sudakov@sibptus.tomsk.ru>

Victor Sudakov wrote:
[snip]

> > Privilege escalation is possible whenever an FTP daemon can be fed
> > arbitrary code to execute.
>
> Do you know of any exploits that can run arbitrary code via ftpd
> not with the euid of the user (possible anonymous) , but with root privileges?

Here's one from Bugtraq. It claims to run under FreeBSD 4.x (not .3) and
OpenBSD 2.8. It does not include code to break from a chroot, so it does not
work for that case. However, nothing is stopping you from adding code to break
out of the chroot once you have setuid back to root.

I have not tested it. No guarantee it works. Have fun.

  http://www.securityfocus.com/archive/1/176905 

-- 
Crist J. Clark                                Network Security Engineer
crist.clark@globalstar.com                    Globalstar, L.P.
(408) 933-4387                                FAX: (408) 933-4926
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