Microsoft Windows Kernel win32k.sys Privilege Escalation Vulnerability

# SPDX-FileCopyrightText: 2009 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("1.3.6.1.4.1.25623.1.0.800862");
  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:"2009-08-11 07:36:16 +0200 (Tue, 11 Aug 2009)");
  script_tag(name:"cvss_base", value:"4.6");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:P/I:P/A:P");
  script_cve_id("CVE-2009-2653");
  script_name("Microsoft Windows Kernel win32k.sys Privilege Escalation Vulnerability");
  script_xref(name:"URL", value:"http://www.milw0rm.com/exploits/9301");
  script_xref(name:"URL", value:"http://www.ntinternals.org/index.html#09_07_30");
  script_xref(name:"URL", value:"http://securitytracker.com/alerts/2009/Jul/1022630.html");

  script_tag(name:"qod_type", value:"executable_version");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 Greenbone AG");
  script_family("Privilege escalation");
  script_dependencies("smb_reg_service_pack.nasl");
  script_mandatory_keys("SMB/WindowsVersion");
  script_require_ports(139, 445);

  script_tag(name:"impact", value:"Successful exploitation could allow local administrators to
  bypass unspecified 'security software' and gain privileges.");

  script_tag(name:"affected", value:"- Microsoft Windows XP SP2/SP3 and prior

  - Microsoft Windows Server 2003 before SP1");

  script_tag(name:"insight", value:"The flaw is due to error in NtUserConsoleControl function in
  win32k.sys caused via a crafted call that triggers an overwrite of an arbitrary memory location.");

  script_tag(name:"solution", value:"No known solution was made available for at least one year since the disclosure
  of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer
  release, disable respective features, remove the product or replace the product by another one.");

  script_tag(name:"summary", value:"Windows XP/2003 is prone to a privilege escalation vulnerability.");

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

  exit(0);
}

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

winVer = get_kb_item("SMB/WindowsVersion");

if(winVer =~ "^5\.[12]")
{
  SP = get_kb_item("SMB/WinXP/ServicePack");
  SvPk = get_kb_item("SMB/Win2003/ServicePack");
  if(("Service Pack 2" >< SP) || ("Service Pack 3" >< SP) || isnull(SvPk))
  {
    sysPath = registry_get_sz(item:"Install Path", key:"SOFTWARE\Microsoft\COM3\Setup");
    sysPath += "\win32k.sys";
    share = ereg_replace(pattern:"([A-Z]):.*", replace:"\1$", string:sysPath);
    file = ereg_replace(pattern:"[A-Z]:(.*)", replace:"\1", string:sysPath);
    sysVer = GetVer(file:file, share:share);

    if(sysVer =~ "^5\.1\.")
    {
      if(version_is_less_equal(version:sysVer, test_version:"5.1.2600.5796"))
        security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
    else if(sysVer =~ "^5\.2\.")
      security_message( port: 0, data: "The target host was found to be vulnerable" );
 }
}