Microsoft Outlook 2016 RCE Vulnerability (KB5002656)

# SPDX-FileCopyrightText: 2025 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("1.3.6.1.4.1.25623.1.0.834884");
  script_version("2025-01-17T05:37:18+0000");
  script_cve_id("CVE-2025-21357");
  script_tag(name:"cvss_base", value:"6.0");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:H/Au:S/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2025-01-17 05:37:18 +0000 (Fri, 17 Jan 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2025-01-14 18:16:01 +0000 (Tue, 14 Jan 2025)");
  script_tag(name:"creation_date", value:"2025-01-15 16:05:56 +0530 (Wed, 15 Jan 2025)");
  script_name("Microsoft Outlook 2016 RCE Vulnerability (KB5002656)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft KB5002656");

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

  script_tag(name:"insight", value:"The flaw exists due to a remote code
  execution vulnerability exists in microsoft outlook.");

  script_tag(name:"impact", value:"Successful exploitation allows an attacker
  to perform remote code execution.");

  script_tag(name:"affected", value:"Microsoft Outlook 2016.");

  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");
  script_xref(name:"URL", value:"https://support.microsoft.com/en-us/help/5002656");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2025 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("secpod_office_products_version_900032.nasl");
  script_mandatory_keys("SMB/Office/Outlook/Version");
  script_require_ports(139, 445);
  exit(0);
}

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

outlookVer = get_kb_item("SMB/Office/Outlook/Version");
if(!outlookVer|| outlookVer !~ "^16\.") {
  exit(0);
}

outlookFile = registry_get_sz(key:"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\OUTLOOK.EXE", item:"Path");
if(!outlookFile) {
  exit(0);
}

outlookVer = fetch_file_version(sysPath:outlookFile, file_name:"outlook.exe");
if(!outlookVer) {
  exit(0);
}

if(version_in_range(version:outlookVer, test_version:"16.0", test_version2:"16.0.5483.0999")) {
  report = report_fixed_ver(file_checked: outlookFile + "outlook.exe",
                            file_version:outlookVer, vulnerable_range:"16.0 - 16.0.5483.0999");
  security_message(port:0, data:report);
  exit(0);
}

exit(99);