Palo Alto Networks PAN-OS 8.1.x < 8.1.17 Memory Corruption

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

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

if (description)
{
  script_id(155307);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/26");

  script_cve_id("CVE-2021-3064");
  script_xref(name:"IAVA", value:"2021-A-0552-S");

  script_name(english:"Palo Alto Networks PAN-OS 8.1.x < 8.1.17 Memory Corruption");

  script_set_attribute(attribute:"synopsis", value:
"The remote PAN-OS host is affected by a memory corruption vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Palo Alto Networks PAN-OS running on the remote host is 8.1.x prior to 8.1.17. It is, therefore, affected
by a memory corruption vulnerability. This vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway 
interfaces that enables an unauthenticated network-based attacker to disrupt system processes and potentially execute
arbitrary code with root privileges. The attacker must have network access to the GlobalProtect interface to exploit 
this issue.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://security.paloaltonetworks.com/CVE-2021-3064");
  script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/121.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PAN-OS 8.1.17 or later");
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/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-2021-3064");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(121);

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/11/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/11/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/11/12");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:paloaltonetworks:pan-os");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Palo Alto Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("palo_alto_version.nbin");
  script_require_keys("Host/Palo_Alto/Firewall/Version", "Host/Palo_Alto/Firewall/Full_Version", "Host/Palo_Alto/Firewall/Source", "Settings/ParanoidReport");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

vcf::palo_alto::initialize();

var app_name = 'Palo Alto Networks PAN-OS';

var app_info = vcf::get_app_info(app:app_name, kb_ver:'Host/Palo_Alto/Firewall/Full_Version', kb_source:'Host/Palo_Alto/Firewall/Source');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

var constraints = [
  { 'min_version' : '8.1.0', 'fixed_version' : '8.1.17' }
];

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