Microsoft Pragmatic General Multicast (PGM) DoS Vulnerability (950762)

# 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.801485");
  script_version("2026-04-28T06:28:06+0000");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"creation_date", value:"2011-01-10 14:22:58 +0100 (Mon, 10 Jan 2011)");
  script_cve_id("CVE-2008-1440", "CVE-2008-1441");
  script_tag(name:"cvss_base", value:"7.1");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:C");
  script_name("Microsoft Pragmatic General Multicast (PGM) DoS Vulnerability (950762)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("secpod_reg_enum.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("SMB/registry_enumerated");

  script_xref(name:"URL", value:"http://www.vupen.com/english/advisories/2008/1783");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/29508");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/29509");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-036");

  script_tag(name:"summary", value:"This host is missing a critical security update according to
  Microsoft Bulletin MS08-036.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present
  on the target host.");

  script_tag(name:"impact", value:"Successful exploitation could allow remote attackers to cause a
  vulnerable system to become non-responsive.");

  script_tag(name:"affected", value:"- Microsoft Windows XP Service Pack 3 and prior

  - Microsoft Windows 2K3 Service Pack 2 and prior

  - Microsoft Windows Vista Service Pack 1 and prior

  - Microsoft Windows Server 2008 Service Pack 1 and prior");

  script_tag(name:"insight", value:"The flaw is due to the errors in Pragmatic General Multicast
  (PGM) protocol when handling PGM packets with an invalid option length field or fragment option.");

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

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

  exit(0);
}

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

if(hotfix_check_sp(xp:4, win2003:3, winVista:2, win2008:2) <= 0)
  exit(0);

if(hotfix_missing(name:"950762") == 0)
  exit(0);

if(!sysPath = smb_get_system32root())
  exit(0);

if(!sysVer = fetch_file_version(sysPath:sysPath, file_name:"drivers\Rmcast.sys"))
  exit(0);

if(hotfix_check_sp(xp:4) > 0)
{
  SP = get_kb_item("SMB/WinXP/ServicePack");
  if("Service Pack 2" >< SP)
  {
    if(version_is_less(version:sysVer, test_version:"5.1.2600.3369")){
       report = report_fixed_ver(installed_version:sysVer, fixed_version:"5.1.2600.3369", install_path:sysPath);
       security_message(port: 0, data: report);
    }
    exit(0);
  }

  if("Service Pack 3" >< SP)
  {
    if(version_is_less(version:sysVer, test_version:"5.1.2600.5598")){
       report = report_fixed_ver(installed_version:sysVer, fixed_version:"5.1.2600.5598", install_path:sysPath);
       security_message(port: 0, data: report);
    }
    exit(0);
  }
  security_message( port: 0, data: "The target host was found to be vulnerable" );
}

else if(hotfix_check_sp(win2003:3) > 0)
{
  SP = get_kb_item("SMB/Win2003/ServicePack");
  if("Service Pack 1" >< SP)
  {
    if(version_is_less(version:sysVer, test_version:"5.2.3790.3136")){
       report = report_fixed_ver(installed_version:sysVer, fixed_version:"5.2.3790.3136", install_path:sysPath);
       security_message(port: 0, data: report);
    }
    exit(0);
  }

  if("Service Pack 2" >< SP)
  {
    if(version_is_less(version:sysVer, test_version:"5.2.3790.4290")){
      report = report_fixed_ver(installed_version:sysVer, fixed_version:"5.2.3790.4290", install_path:sysPath);
      security_message(port: 0, data: report);
    }
    exit(0);
  }
  security_message( port: 0, data: "The target host was found to be vulnerable" );
}
else if(hotfix_check_sp(winVista:2) > 0)
{
  SP = get_kb_item("SMB/WinVista/ServicePack");
  if("Service Pack 1" >< SP)
  {
    if(version_is_less(version:sysVer, test_version:"6.0.6001.18069")){
      report = report_fixed_ver(installed_version:sysVer, fixed_version:"6.0.6001.18069", install_path:sysPath);
      security_message(port: 0, data: report);
    }
     exit(0);
  }
}

else if(hotfix_check_sp(win2008:2) > 0)
{
  SP = get_kb_item("SMB/Win2008/ServicePack");
  if("Service Pack 1" >< SP)
  {
    if(version_is_less(version:sysVer, test_version:"6.0.6001.18069")){
      report = report_fixed_ver(installed_version:sysVer, fixed_version:"6.0.6001.18069", install_path:sysPath);
      security_message(port: 0, data: report);
    }
     exit(0);
  }
}