Microsoft Windows Subsystem for Linux (WSL2) < 2.5.10 Kernel Elevation of Privilege (August 2025)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(250272);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/08/15");

  script_cve_id("CVE-2025-53788");
  script_xref(name:"IAVA", value:"2025-A-0605");

  script_name(english:"Microsoft Windows Subsystem for Linux (WSL2) < 2.5.10 Kernel Elevation of Privilege (August 2025)");

  script_set_attribute(attribute:"synopsis", value:
"Microsoft Windows Subsystem for Linux (WSL2) is affected by a kernel elevation of privilege vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Microsoft Windows Subsystem for Linux (WSL2) on the remote Windows host is prior to 2.5.10. It is,
therefore, affected by a kernel elevation of privilege vulnerability:

  - Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to
    elevate privileges locally. (CVE-2025-53788)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53788
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ec1a8c99");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Microsoft Windows Subsystem for Linux (WSL2) version 2.5.10 or later via the Microsoft Store.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-53788");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/08/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/08/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/08/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:windows_subsystem_for_linux");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_hotfixes.nasl", "wmi_enum_windows_app_store.nbin");
  script_require_keys("SMB/Registry/Enumerated", "WMI/Windows App Store/Enumerated");
  script_require_ports(139, 445);

  exit(0);
}

include('vcf_extras.inc');

var app = 'MicrosoftCorporationII.WindowsSubsystemForLinux';

var app_info = vcf::microsoft_appstore::get_app_info(app:app);

var constraints = [
    { 'fixed_version':'2.5.10' }
];

vcf::microsoft_appstore::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);