Intel BIOS Firmware Privilege Escalation (INTEL-SA-00813) (CVE-2022-37343)

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

include('compat.inc');

if (description)
{
  script_id(179948);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/21");

  script_cve_id("CVE-2022-37343");
  script_xref(name:"IAVA", value:"2023-A-0426");

  script_name(english:"Intel BIOS Firmware Privilege Escalation (INTEL-SA-00813) (CVE-2022-37343)");

  script_set_attribute(attribute:"synopsis", value:
"The BIOS firmware on the remote host is affected by a privilege escalation vulnerability.");
  script_set_attribute(attribute:"description", value:
"Improper access control in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially 
enable escalation of privilege via local access. (CVE-2022-37343)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00813.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3f552fd5");
  script_set_attribute(attribute:"solution", value:
"Contact your system OEM for updated firmware per the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:M/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:L/AC:L/PR:H/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-2022-37343");

  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:"2022/08/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/08/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/08/18");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:intel");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:intel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:intel");
  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) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("intel_cpuid_detection.nbin");
  script_require_keys("SMB/WMI/Available", "Settings/ParanoidReport");

  exit(0);
}

if (report_paranoia < 2) audit(AUDIT_PARANOID);

var processor_id = get_kb_item_or_exit('Host/cpu/cpuid');

var vuln_processors = [
  {
    'Product Collection': 'Intel Atom® processor C3000 series',
    'Vertical Segment': 'Server',
    'CPU ID': ['506F1'],
    'Platform ID': 1
  },
  {
    'Product Collection': 'Intel® Xeon® D Processor',
    'Vertical Segment': 'Server',
    'CPU ID': ['606C1'],
    'Platform ID': 1
  },
  {
    'Product Collection': 'Intel Atom® processor P5000 series',
    'Vertical Segment': 'Server',
    'CPU ID': ['80665', '80667'],
    'Platform ID': 1
  }
];

var cve, cpuids, report, found = FALSE;
cve = 'CVE-2022-37343';
foreach (var processor in vuln_processors) 
{
  cpuids = processor['CPU ID'];
  foreach (var cpuid in cpuids)
  {
    if (processor_id == cpuid) 
    {
      found = TRUE;
      report  = 'The processor(s) ' + processor['Product Collection'] + ' with CPU ID ' + cpuid + ' are vulnerable to ' + 
                cve + '. See vendor advisory.\n';
      security_report_v4(port:135, severity:SECURITY_WARNING, extra:report);
    }     
  }
}

if (!found)
  audit(AUDIT_INST_VER_NOT_VULN, 'The intel processor');