Penetration Testing mailing list archives

RE: Re-opening an old thread: NetWare-Enterprise-Web-Server/5.1 - -As sistence requested.


From: "Dawes, Rogan (ZA - Johannesburg)" <rdawes () deloitte co za>
Date: Thu, 19 Dec 2002 09:32:34 +0200

I remember finding this on a netware server that I was auditing.
Essentially, it is a path mapping that executes the rest of the line as a
perl filename.

E.g. /perl/mycgi.pl actually executes "perl -- ${root}/mycgi.pl".
 And /perl/dir/mycgi.pl executes "perl -- ${root}/dir/mycgi.pl"

I'm guessing about the "--", but that is what I'd do. It would also explain
why the rest of your options "-h", etc failed.

One thing you could try, which I've just noticed in the perlrun manpage:

Try POSTing your program to the following URL
/perl/-

Might be equivalent to:

0 $ echo 'print "hello world\n";' | perl -- -
hello world
0 $ 

You would obviously have to think about encoding your program to pass HTTP
%-encoding rules, and substitute spaces with +, etc. There were some nice
suggestions on this list a while back as to how to write a perl program
without any spaces in it - I've not got time to search for it though :-)

Good luck. Let us know if it works.

Rogan

P.S. One thing you may want to do is print a blank line before any other
output. Otherwise you may be writing headers, rather than body.

-----Original Message-----
From: Ralph Los [mailto:RLos () enteredge com] 
Sent: 18 December 2002 10:29 PM
To: Pen-test () securityfocus com
Subject: Re-opening an old thread: NetWare-Enterprise-Web-Server/5.1 --As
sistence requested.
Sensitivity: Confidential


Hey - let me re-open a thread again, if you folks don't mind.  I've found a
server at one of our pen-test clients with this NetWare HTTP/HTTPS server.
I've been trying to figure out a way to make it tango, but have been having
some problems.  Here's what I've tried and where I left off, maybe someone
can toss some suggestions out.

Attempt:  http://address/perl/-v
Result:         NetWare port Copyright 1998 Novell Corporation.
                All rights reserved.

Attempt: http://address/perl/-h
Result: Page not found

Attempt: http://address/perl/-e%20print%20%22hello%20world%22;
Result: IE just hangs there "DONE"

Attempt: http://address/perl/-e%20print%201;
Result: IE just hangs there "DONE"

So what's up?  Is this box "patched" against this form of attack somehow?
Could someone throw me another idea maybe?

Thanks a bunch.


----------------------------------------------------------------------------
This list is provided by the SecurityFocus Security Intelligence Alert (SIA)
Service. For more information on SecurityFocus' SIA service which
automatically alerts you to the latest security vulnerabilities please see:
https://alerts.securityfocus.com/

----------------------------------------------------------------------------
This list is provided by the SecurityFocus Security Intelligence Alert (SIA)
Service. For more information on SecurityFocus' SIA service which
automatically alerts you to the latest security vulnerabilities please see:
https://alerts.securityfocus.com/


Current thread: