ESXi 6.0 / 6.5 / 6.7 Multiple Vulnerabilities (VMSA-2019-0005) (Remote Check)

#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(123518);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");

  script_cve_id("CVE-2019-5518", "CVE-2019-5519");
  script_xref(name:"VMSA", value:"2019-0005");
  script_xref(name:"IAVA", value:"2019-A-0099");
  script_xref(name:"CEA-ID", value:"CEA-2019-0190");

  script_name(english:"ESXi 6.0 / 6.5 / 6.7 Multiple Vulnerabilities (VMSA-2019-0005) (Remote Check)");

  script_set_attribute(attribute:"synopsis", value:
"The remote VMware ESXi host is missing a security patch
and is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote VMware ESXi host is version 6.0, 6.5, or 6.7 and is
missing a security patch. It is, therefore, vulnerable to multiple
vulnerabilities, including:

  - An out-of-bounds read/write vulnerability and a Time-of-check
    Time-of-use (TOCTOU) vulnerability in the virtual USB 1.1 UHCI
    (Universal Host Controller Interface). Exploitation of these
    issues requires an attacker to have access to a virtual machine
    with a virtual USB controller present. These issues may allow a
    guest to execute code on the host. (CVE-2019-5518, CVE-2019-5519)");
  script_set_attribute(attribute:"see_also", value:"https://www.vmware.com/security/advisories/VMSA-2019-0005.html");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch as referenced in the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-5519");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/03/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/29");

  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) 2019-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");

fixes = make_array(
  '6.0', '13003896',
  '6.5', '13004031',
  '6.7', '13004448'
);

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

ver = get_kb_item_or_exit("Host/VMware/version");
port = get_kb_item_or_exit("Host/VMware/vsphere");

match = pregmatch(pattern:"^ESXi? ([0-9]+\.[0-9]+).*$", string:ver);
if (isnull(match)) audit(AUDIT_UNKNOWN_BUILD, "VMware ESXi", "6.0 / 6.5 / 6.7");
ver = match[1];

if (ver != '6.0' && ver != '6.5' && ver != '6.7')
  audit(AUDIT_OS_NOT, "ESXi 6.0 / 6.5 / 6.7");

fixed_build = fixes[ver];

if (empty_or_null(fixed_build)) audit(AUDIT_VER_FORMAT, ver);

match = pregmatch(pattern:'^VMware ESXi.*build-([0-9]+)$', string:rel);
if (isnull(match)) audit(AUDIT_UNKNOWN_BUILD, "VMware ESXi", "6.0 / 6.5 / 6.7");

build = int(match[1]);

if (build < fixed_build)
{
  report = '\n  ESXi version    : ' + ver +
           '\n  Installed build : ' + build +
           '\n  Fixed build     : ' + fixed_build +
           '\n';

  security_report_v4(port:port, severity:SECURITY_HOLE, extra:report);
}
else audit(AUDIT_INST_VER_NOT_VULN, "VMware ESXi", ver + " build " + build);