Vulnerability Development mailing list archives

RE: Another flaw in Apache?


From: Ryan Sweat <h3xm3 () swbell net>
Date: Sat, 22 Jun 2002 21:12:03 -0500

Linux doesn't seem vulnerable.  Tested on both Apache/2.0.39 and
Apache/1.3.20, on Redhat 7.3 and 7.2 respectively.  Error log reports
'invalid command [data], perhaps mis-spelled or defined by a module not 
included in the server configuration.'

Where is the overflow taking place on OpenBsd?

-ryan

 
On Sat, Jun 22, 2002 at 09:11:18PM +0200, Jedi/Sector One wrote:
  While playing with the SetEnv directive with Apache, I noticed
that
httpd
processes are dying with a signal 11 if the data stored in an
environment
variable was too long.

Nice bug and easy to exploit. I've attached a piece of code which
creates
an
.htaccess file. Requesting a directory containing this file causes all
httpd daemons to die. Works on my OpenBSD 3.1-current.

--
 __  /*-      Frank DENIS (Jedi/Sector One) <j () 42-Networks Com>
-*\
__
 \ '/    <a href="http://www.PureFTPd.Org/";> Secure FTP Server </a>
\' /
  \/  <a href="http://www.Jedi.Claranet.Fr/";> Misc. free software
</a>
\/

--
   Alexander Yurchenko (aka grange)


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