Microsoft Forefront Unified Access Gateway Remote Code Execution Vulnerabilities (2544641)

# 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.903045");
  script_version("2026-04-28T06:28:06+0000");
  script_cve_id("CVE-2011-1895", "CVE-2011-1896", "CVE-2011-1897", "CVE-2011-1969",
                "CVE-2011-2012");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"creation_date", value:"2012-10-26 17:47:08 +0530 (Fri, 26 Oct 2012)");
  script_name("Microsoft Forefront Unified Access Gateway Remote Code Execution Vulnerabilities (2544641)");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2522482");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/49972");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/49974");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/49979");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/49980");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/49983");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2522483");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2522484");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2522485");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-079");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2012 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("gb_ms_forefront_unified_access_gateway_detect.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("MS/Forefront/UAG/Ver");
  script_tag(name:"impact", value:"Successful exploitation could allow attackers to conduct cross-site scripting
  and HTTP response splitting attacks, cause a denial of service.");
  script_tag(name:"affected", value:"- Microsoft Forefront Unified Access Gateway 2010

  - Microsoft Forefront Unified Access Gateway 2010 Update 1

  - Microsoft Forefront Unified Access Gateway 2010 Update 2

  - Microsoft Forefront Unified Access Gateway 2010 Service Pack 1");
  script_tag(name:"insight", value:"The flaws are due to:

  - when Forefront Unified Access Gateway (UAG) does not properly handle
    script contained in a specially crafted request, allowing for malicious
    content to be reflected back to the user.

  - by an error within the MicrosoftClient.jar Java applet insecurely
    implements certain methods.

  - by improper validation of a NULL value contained within the session cookie.");
  script_tag(name:"solution", value:"The vendor has released updates. Please see the references for more information.");
  script_tag(name:"summary", value:"This host is missing an important security update according to
  Microsoft Bulletin MS11-079.");
  script_tag(name:"qod_type", value:"executable_version");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("smb_nt.inc");
include("secpod_reg.inc");
include("version_func.inc");
include("secpod_smb_func.inc");

uagVer = get_kb_item("MS/Forefront/UAG/Ver");
if(!uagVer){
  exit(0);
}

path = registry_get_sz(key:"SOFTWARE\Microsoft\Windows\CurrentVersion",
                       item:"ProgramFilesDir");
if(!path){
  exit(0);
}

dllVer = fetch_file_version(sysPath:path,
         file_name:"Microsoft Forefront Unified Access Gateway\von\bin\Whlfilter.dll");
if(!dllVer){
  exit(0);
}

if(version_in_range(version:dllVer, test_version:"4.0.1101.0", test_version2:"4.0.1101.62") ||
   version_in_range(version:dllVer, test_version:"4.0.1152.100", test_version2:"4.0.1152.162") ||
   version_in_range(version:dllVer, test_version:"4.0.1269.200", test_version2:"4.0.1269.283") ||
   version_in_range(version:dllVer, test_version:"4.0.1752.10000", test_version2:"4.0.1752.10072")){
  security_message( port: 0, data: "The target host was found to be vulnerable" );
}