Palo Alto Networks PAN-OS 8.1.x < 8.1.16 / 9.0.x < 9.0.10 / 9.1.x < 9.1.4 / 10.0.x < 10.0.1 DoS

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

include('compat.inc');

if (description)
{
  script_id(140527);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");

  script_cve_id("CVE-2020-2039");
  script_xref(name:"IAVA", value:"2020-A-0418-S");
  script_xref(name:"CEA-ID", value:"CEA-2020-0120");

  script_name(english:"Palo Alto Networks PAN-OS 8.1.x < 8.1.16 / 9.0.x < 9.0.10 / 9.1.x < 9.1.4 / 10.0.x < 10.0.1 DoS");

  script_set_attribute(attribute:"synopsis", value:
"The remote PAN-OS host is affected by a denial of service 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 8.1.16, 9.0.x prior to 9.0.10,
9.1.x prior to 9.1.4, or 10.0.x prior to 10.0.1. It is, therefore, affected by a denial of service (DoS) vulnerability.
An uncontrolled resource consumption vulnerability in Palo Alto Networks PAN-OS allows for a remote, unauthenticated
user to upload temporary files through the management web interface that are not properly deleted after the request is
finished. It is possible for an attacker to disrupt the availability of the management web interface by repeatedly
uploading files until available disk space is exhausted.

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-2020-2039");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PAN-OS 8.1.16 / 9.0.10 / 9.1.4 / 10.0.1 or later");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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:N/I:N/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-2039");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/09/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/09/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/09/11");

  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) 2020-2022 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");

  exit(0);
}

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

vcf::palo_alto::initialize();

app_name = 'Palo Alto Networks PAN-OS';

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

constraints = [
  { 'min_version' : '8.1.0', 'fixed_version' : '8.1.16' },
  { 'min_version' : '9.0.0', 'fixed_version' : '9.0.10' },
  { 'min_version' : '9.1.0', 'fixed_version' : '9.1.4' },
  { 'min_version' : '10.0.0', 'fixed_version' : '10.0.1' }
];

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