Microsoft Remote Desktop Connection Remote Code Execution Vulnerability (969706)

# 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("1.3.6.1.4.1.25623.1.0.900813");
  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:"2009-08-12 19:54:51 +0200 (Wed, 12 Aug 2009)");
  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_cve_id("CVE-2009-1133", "CVE-2009-1929");
  script_name("Microsoft Remote Desktop Connection Remote Code Execution Vulnerability (969706)");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/970927");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/35971");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/35973");
  script_xref(name:"URL", value:"http://www.vupen.com/english/advisories/2009/2238");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-044");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 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_tag(name:"impact", value:"Successful exploitation will let the attacker execute arbitrary code which may
  result in heap-based buffer overflow on the affected system.");
  script_tag(name:"affected", value:"- Microsoft Windows 2k  Service Pack 4 and prior

  - Microsoft Windows XP  Service Pack 3 and prior

  - Microsoft Windows 2k3 Service Pack 2 and prior

  - Microsoft Windows Vista Service Pack 1/2 and prior

  - Microsoft Windows Server 2008 Service Pack 1/2 and prior");
  script_tag(name:"insight", value:"- Error exists when processing specific parameters returned by the RDP server,
    which could be exploited to cause a heap-based buffer overflow by tricking a
    user into connecting to a malicious RDP server.

  - An heap-based buffer overflow error in the Remote Desktop Web Connection
    ActiveX control when processing malformed parameters, which can be exploited
    via specially crafted web page.");
  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 a critical security update according to
  Microsoft Bulletin MS09-044.");
  script_tag(name:"qod_type", value:"executable_version");
  script_tag(name:"solution_type", value:"VendorFix");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-044");
  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, win2k:5, win2003:3, winVista:3, win2008:3) <= 0){
  exit(0);
}

# MS09-044 Hotfix check
if((hotfix_missing(name:"958469") == 0)||(hotfix_missing(name:"958470") == 0)||
   (hotfix_missing(name:"958471") == 0)||(hotfix_missing(name:"956744") == 0)){
  exit(0);
}

sysPath = smb_get_system32root();
if(sysPath)
{
  dllVer = fetch_file_version(sysPath:sysPath, file_name:"Mstscax.dll");
  if(!dllVer){
     exit(0);
  }
}

if(hotfix_check_sp(win2k:5) > 0)
{
  if(version_is_less(version:dllVer, test_version:"5.1.2600.3581")){
    security_message( port: 0, data: "The target host was found to be vulnerable" );
  }
}

else if(hotfix_check_sp(xp:4) > 0)
{
  SP = get_kb_item("SMB/WinXP/ServicePack");
  if("Service Pack 2" >< SP)
  {
    # 6.0.6000.00000 < 6.0.6000.16865 (RDP v6.0) or 6.0.6001.00000 < 6.0.6001.22443 (RDP v6.1)
    if(version_is_less(version:dllVer, test_version:"5.1.2600.3581")||
       version_in_range(version:dllVer, test_version:"6.0.6000.00000", test_version2:"6.0.6000.16864")||
       version_in_range(version:dllVer, test_version:"6.0.6001.00000", test_version2:"6.0.6001.22442")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
  }
  else if("Service Pack 3" >< SP)
  {
    if(version_is_less(version:dllVer, test_version:"5.1.2600.3581")||
       version_in_range(version:dllVer, test_version:"6.0.6001.00000", test_version2:"6.0.6001.18265")){
      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 2" >< SP)
  {
    if(version_is_less(version:dllVer, test_version:"5.2.3790.4524") ||
       version_in_range(version:dllVer, test_version:"6.0", test_version2:"6.0.6000.16864")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
  }
}

sysPath = smb_get_system32root();
if(sysPath)
{
  dllVer = fetch_file_version(sysPath:sysPath, file_name:"Mstscax.dll");
  if(!dllVer){
    exit(0);
  }
}

if(hotfix_check_sp(winVista:3) > 0)
{
  SP = get_kb_item("SMB/WinVista/ServicePack");
  if("Service Pack 1" >< SP)
  {
    if(version_is_less(version:dllVer, test_version:"6.0.6001.18266")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
     exit(0);
  }

  if("Service Pack 2" >< SP)
  {
      if(version_is_less(version:dllVer, test_version:"6.0.6002.18045")){
        security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
     exit(0);
  }
   security_message( port: 0, data: "The target host was found to be vulnerable" );
}

else if(hotfix_check_sp(win2008:3) > 0)
{
  SP = get_kb_item("SMB/Win2008/ServicePack");
  if("Service Pack 1" >< SP)
  {
    if(version_is_less(version:dllVer, test_version:"6.0.6001.18266")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
     exit(0);
  }

  if("Service Pack 2" >< SP)
  {
      if(version_is_less(version:dllVer, test_version:"6.0.6002.18045")){
        security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
     exit(0);
  }
   security_message( port: 0, data: "The target host was found to be vulnerable" );
}