VMware ESXi 7.0 / 8.0 Multiple Vulnerabilities (VMSA-2025-0004)

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

include('compat.inc');

if (description)
{
  script_id(237304);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/16");

  script_cve_id("CVE-2025-22224", "CVE-2025-22225", "CVE-2025-22226");
  script_xref(name:"VMSA", value:"2025-0004");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2025/03/25");
  script_xref(name:"IAVA", value:"2025-A-0148-S");

  script_name(english:"VMware ESXi 7.0 / 8.0 Multiple Vulnerabilities (VMSA-2025-0004)");

  script_set_attribute(attribute:"synopsis", value:
"The remote VMware ESXi host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of VMware ESXi installed on the remote host is 7.0 prior to 7.0 Update 3s, 8.0 Update 2 prior to 8.0
Update 2d, or 8.0 Update 3 prior to 8.0 Update 3d. It is, therefore, affected by multiple vulnerabilities as
referenced in the VMSA-2025-0004 advisory:

  - VMware ESXi, and Workstation contain a TOCTOU (Time-of-Check Time-of-Use) vulnerability that leads to an
    out-of-bounds write. A malicious actor with local administrative privileges on a virtual machine may exploit this
    issue to execute code as the virtual machine's VMX process running on the host. (CVE-2025-22224)

  - VMware ESXi contains an arbitrary write vulnerability. A malicious actor with privileges within the VMX process may
    trigger an arbitrary kernel write leading to an escape of the sandbox. (CVE-2025-22225)

  - VMware ESXi, Workstation, and Fusion contain an information disclosure vulnerability due to an out-of-bounds read
    in HGFS. A malicious actor with administrative privileges to a virtual machine may be able to exploit this issue to
    leak memory from the vmx process. (CVE-2025-22226)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25390
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?15790ced");
  script_set_attribute(attribute:"solution", value:
"Upgrade to VMware ESXi 7.0 Update 3s, 8.0 Update 2d, or 8.0 Update 3d or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-22224");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/03/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/03/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/05/27");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esxi");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("vmware_vsphere_detect.nbin");
  script_require_keys("Host/VMware/release", "Host/VMware/vsphere");

  exit(0);
}

var fixes = make_array(
    '7.0.0', 24585291,
    '7.0.1', 24585291,
    '7.0.2', 24585291,
    '7.0.3', 24585291,
    '8.0.0', 24585300,
    '8.0.1', 24585300,
    '8.0.2', 24585300,
    '8.0.3', 24585383
);

var fixed_display = make_array(
    '7.0.0', '7.0U3s 24585291',
    '7.0.1', '7.0U3s 24585291',
    '7.0.2', '7.0U3s 24585291',
    '7.0.3', '7.0U3s 24585291',
    '8.0.0', '8.0U2d 24585300',
    '8.0.1', '8.0U2d 24585300',
    '8.0.2', '8.0U2d 24585300',
    '8.0.3', '8.0U3d 24585383'
);

var rel = get_kb_item_or_exit('Host/VMware/release');
if ('ESXi' >!< rel) audit(AUDIT_OS_NOT, 'ESXi');

var port  = get_kb_item_or_exit('Host/VMware/vsphere');

var match = pregmatch(pattern:"^VMware ESXi?o? ([0-9]+\.[0-9]+\.[0-9]+)", string:rel);
if (isnull(match)) audit(AUDIT_UNKNOWN_BUILD, 'VMware ESXi', '7.0 / 8.0');
var ver = match[1];

if (ver !~ "^((7|8)\.0)") audit(AUDIT_OS_NOT, 'ESXi 7.0 / 8.0');

var fixed_build = fixes[ver];

# 24416880 is a special ESX build for Mobility Agent 
if (empty_or_null(fixed_build) || "24416880" >< rel) audit(AUDIT_INST_VER_NOT_VULN, 'VMware ESXi', ver);

match = pregmatch(pattern:"^VMware ESXi?o?.*[Bb]uild[- ]([0-9]+)$", string:rel);
if (isnull(match)) audit(AUDIT_UNKNOWN_BUILD, 'VMware ESXi', '7.0 / 8.0');

var build = int(match[1]);

if (build >= fixed_build) audit(AUDIT_INST_VER_NOT_VULN, 'VMware ESXi', ver + ' build ' + build);

var report = '\n  ESXi version    : ' + rel +
         '\n  Installed build : ' + build +
         '\n  Fixed build     : ' + fixed_display[ver] +
         '\n';

security_report_v4(port:port, severity:SECURITY_HOLE, extra:report);