VMware ESX / ESXi Descheduled Time Accounting DoS (VMSA-2009-0007) (remote check)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(89113);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2009-1805");
  script_bugtraq_id(35141);
  script_xref(name:"VMSA", value:"2009-0007");

  script_name(english:"VMware ESX / ESXi Descheduled Time Accounting DoS (VMSA-2009-0007) (remote check)");
  script_summary(english:"Checks the ESX / ESXi version and build number.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a security-related patch.");
  script_set_attribute(attribute:"description", value:
"The remote ESX / ESXi host is missing a security-related patch. It is,
therefore, affected by an unspecified flaw in the Descheduled Time
Accounting driver that allows a guest Windows user to cause a denial
of service. Note that this issue can be exploited only if the feature
is installed and the affected service is not running in the virtual
machine.");
  script_set_attribute(attribute:"see_also", value:"https://www.vmware.com/security/advisories/VMSA-2009-0007");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the vendor advisory that
pertains to ESX / ESXi version 3.5.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/05/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/05/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/03");

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

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

  script_copyright(english:"This script is Copyright (C) 2016-2021 Tenable Network Security, Inc.");

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

  exit(0);
}

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

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

fixes = make_array();
fixes["ESX 3.5"]   = 158874;
fixes["ESXi 3.5"]  = 158874;

matches = eregmatch(pattern:'^VMware (ESXi?).*build-([0-9]+)$', string:release);
if (empty_or_null(matches))
  exit(1, 'Failed to extract the ESX / ESXi build number.');

type  = matches[1];
build = int(matches[2]);

fixed_build = fixes[version];

if (!isnull(fixed_build) && build < fixed_build)
{
  padding = crap(data:" ", length:8 - strlen(type)); # Spacing alignment

  report = '\n  ' + type + ' version' + padding + ': ' + version +
           '\n  Installed build : ' + build +
           '\n  Fixed build     : ' + fixed_build +
           '\n';

  security_report_v4(extra:report, port:port, severity:SECURITY_WARNING);
}
else
  audit(AUDIT_INST_VER_NOT_VULN, "VMware " + version + " build " + build);