Microsoft Visual Studio RCE Vulnerability (Jan 2019)

# SPDX-FileCopyrightText: 2019 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("1.3.6.1.4.1.25623.1.0.814662");
  script_version("2025-08-13T05:40:47+0000");
  script_cve_id("CVE-2019-0546");
  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:"2025-08-13 05:40:47 +0000 (Wed, 13 Aug 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-08-24 17:37:00 +0000 (Mon, 24 Aug 2020)");
  script_tag(name:"creation_date", value:"2019-01-18 15:11:24 +0530 (Fri, 18 Jan 2019)");
  script_name("Microsoft Visual Studio RCE Vulnerability (Jan 2019)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft Security Update January-2019.");

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

  script_tag(name:"insight", value:"The flaw exists when the Visual Studio C++
  compiler improperly handles specific combinations of C++ constructs.");

  script_tag(name:"impact", value:"Successful exploitation will allow an
  attacker to run arbitrary code in the context of the current user. If the
  current user is logged on with administrative user rights, an attacker could
  take control of the affected system.");

  script_tag(name:"affected", value:"Microsoft Visual Studio 2017 Version 15.9.");

  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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0546");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/visualstudio/releasenotes/vs2017-relnotes-v15.9");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("secpod_ms_visual_prdts_detect.nasl");
  script_mandatory_keys("Microsoft/VisualStudio/Ver");
  script_require_ports(139, 445);
  exit(0);
}

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

vsVer = get_kb_item("Microsoft/VisualStudio/Ver");
if(!vsVer || vsVer !~ "^15\."){
  exit(0);
}

os_arch = get_kb_item("SMB/Windows/Arch");
if(!os_arch){
  exit(0);
}

if("x86" >< os_arch){
  key_list = make_list("SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\");
}

else if("x64" >< os_arch){
  key_list = make_list("SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\",
                       "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\");
}

foreach key (key_list)
{
  foreach item (registry_enum_keys(key:key))
  {
    vsname = registry_get_sz(key:key + item, item:"DisplayName");
    if(vsname =~ "^Visual Studio.*2017$")
    {
      install = registry_get_sz(key:key + item, item:"InstallLocation");
      if(install)
        vsversion = fetch_file_version(sysPath:install, file_name:"Common7\IDE\devenv.exe");
      if(!vsversion)
        vsversion = registry_get_sz(key:key + item, item:"DisplayVersion");

      if(!vsversion)
        continue;

      if(version_is_less(version:vsversion, test_version:"15.9.28307.280"))
      {
        report = report_fixed_ver(installed_version:vsversion, fixed_version:"Visual Studio 2017 version 15.9.28307.280");
        security_message(data:report);
        exit(0);
      }
    }
  }
}
exit(0);