Palo Alto Networks PAN-OS 8.x < 8.1.15 / 9.0.x < 9.0.9 / 9.1.x < 9.1.3 TLS 1.0 Usage Vulnerability

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

include('compat.inc');

if (description)
{
  script_id(138222);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/10/13");

  script_cve_id("CVE-2020-1982");
  script_xref(name:"IAVA", value:"2020-A-0282-S");

  script_name(english:"Palo Alto Networks PAN-OS 8.x < 8.1.15 / 9.0.x < 9.0.9 / 9.1.x < 9.1.3 TLS 1.0 Usage Vulnerability");

  script_set_attribute(attribute:"synopsis", value:
"The remote PAN-OS host is affected by a vulnerability");
  script_set_attribute(attribute:"description", value:
"The version of Palo Alto Networks PAN-OS running on the remote host is 8.x prior to 8.1.15 or
9.0.x prior to 9.0.9 or 9.1.x prior to 9.1.3. It is, therefore, affected by a TLS 1.0 usage vulnerability. Certain 
communication between PAN-OS and cloud-delivered services inadvertently use TLS 1.0, which is known to be a cryptographically 
weak protocol. These cloud services include Cortex Data Lake, the Customer Support Portal, and the Prisma Access infrastructure.

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-2020-1982");
  script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/326.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PAN-OS 8.1.15 / 9.0.9 / 9.1.3 or later");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-1982");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(326);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/09");

  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 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' : '8.0.0', 'fixed_version' : '8.1.15' },
  { 'min_version' : '9.0.0', 'fixed_version' : '9.0.9' },
  { 'min_version' : '9.1.0', 'fixed_version' : '9.1.3' }
];

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