ActivePerl perlIS.dll Buffer Overflow

2005-11-03T00:00:00
ID OPENVAS:10811
Type openvas
Reporter This script is Copyright (C) 2001 H D Moore & Drew Hintz ( http://guh.nu )
Modified 2017-12-07T00:00:00

Description

An attacker can run arbitrary code on the remote computer. This is because the remote IIS server is running a version of ActivePerl prior to 5.6.1.630 and has the Check that file exists option disabled for the perlIS.dll.

                                        
                                            # OpenVAS Vulnerability Test
# $Id: perlIS_dll_bufferoverflow.nasl 8023 2017-12-07 08:36:26Z teissa $
# Description: ActivePerl perlIS.dll Buffer Overflow
#
# Authors:
# Drew Hintz ( http://guh.nu )
# It is based on scripts written by Renaud Deraison and  HD Moore
#
# Copyright:
# Copyright (C) 2001 H D Moore & Drew Hintz ( http://guh.nu )
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2,
# as published by the Free Software Foundation
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#

tag_summary = "An attacker can run arbitrary code on the remote computer.
This is because the remote IIS server is running a version of
ActivePerl prior to 5.6.1.630 and has the Check that file
exists option disabled for the perlIS.dll.";

tag_solution = "Either upgrade to a version of ActivePerl more
recent than 5.6.1.629 or enable the Check that file exists option.
To enable this option, open up the IIS MMC, right click on a (virtual)
directory in your web server, choose Properties, 
click on the Configuration... button, highlight the .plx item,
click Edit, and then check Check that file exists.

More Information: http://www.securityfocus.com/bid/3526";


if(description)
{
 script_id(10811);
 script_version("$Revision: 8023 $");
 script_tag(name:"last_modification", value:"$Date: 2017-12-07 09:36:26 +0100 (Thu, 07 Dec 2017) $");
 script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
 script_bugtraq_id(3526);
 script_tag(name:"cvss_base", value:"7.5");
 script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
 script_cve_id("CVE-2001-0815");
 name = "ActivePerl perlIS.dll Buffer Overflow";
 script_name(name);
 

 
 script_category(ACT_DESTRUCTIVE_ATTACK);
  script_tag(name:"qod_type", value:"remote_active");
 script_copyright("This script is Copyright (C) 2001 H D Moore & Drew Hintz ( http://guh.nu )");
 family = "Web application abuses";
 script_family(family);
 script_dependencies("gb_get_http_banner.nasl");
 script_mandatory_keys("IIS/banner");
 script_require_ports("Services/www", 80);
 script_tag(name : "solution" , value : tag_solution);
 script_tag(name : "summary" , value : tag_summary);
 exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");

port = get_http_port(default:80);

if(!get_port_state(port))exit(0);
sig = get_http_banner(port:port);
if ( sig && "IIS" >!< sig ) exit(0);


function check(req)
{
 req = http_get(item:req, port:port);
 r = http_keepalive_send_recv(port:port, data:req);
 if(r == NULL)exit(0);

 if ("HTTP/1.1 500 Server Error" >< r &&
     ("The remote procedure call failed." >< r ||
      "<html><head><title>Error</title>" >< r))
 {
   security_message(port:port);
   return(1);
 }
 return(0);
}

dir[0] = "/scripts/";
dir[1] = "/cgi-bin/";
dir[2] = "/";

for(d = 0; dir[d]; d = d + 1)
{
	url = string(dir[d], crap(660), ".plx"); #by default perlIS.dll handles .plx
	if(check(req:url))exit(0);

	url = string(dir[d], crap(660), ".pl");
	if(check(req:url))exit(0);
}