Palo Alto Networks PAN-OS 7.1.x < 8.1.14 / 8.0.x < 8.1.14 / 8.1.x < 8.1.14 / 9.0.x < 9.0.9 Vulnerability

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

include('compat.inc');

if (description)
{
  script_id(136810);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/10/13");

  script_cve_id("CVE-2020-1996");
  script_xref(name:"IAVA", value:"2020-A-0222-S");

  script_name(english:"Palo Alto Networks PAN-OS 7.1.x < 8.1.14 / 8.0.x < 8.1.14 / 8.1.x < 8.1.14 / 9.0.x < 9.0.9 Vulnerability");

  script_set_attribute(attribute:"synopsis", value:
"The remote PAN-OS host is affected by vulnerability");
  script_set_attribute(attribute:"description", value:
"The version of Palo Alto Networks PAN-OS running on the remote host is 7.1.x prior to 8.1.14 or 8.0.x prior to 8.1.14 or
8.1.x prior to 8.1.14 or 9.0.x prior to 9.0.9. It is, therefore, affected by a vulnerability.

  - A missing authorization vulnerability in the management
    server component of PAN-OS Panorama allows a remote
    unauthenticated user to inject messages into the
    management server ms.log file. This vulnerability can be
    leveraged to obfuscate an ongoing attack or fabricate
    log entries in the ms.log file This issue affects: All
    versions of PAN-OS 7.1 and 8.0; PAN-OS 8.1 versions
    earlier than 8.1.14; PAN-OS 9.0 versions earlier than
    9.0.9. (CVE-2020-1996)

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-2020-1996");
  script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/862.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PAN-OS 8.1.14 / 8.1.14 / 8.1.14 / 9.0.9 or later");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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:L/PR:N/UI:N/S:U/C:N/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-2020-1996");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(862);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/05/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/22");

  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' : '7.1.0', 'fixed_version' : '8.1.14' },
  { 'min_version' : '8.0.0', 'fixed_version' : '8.1.14' },
  { 'min_version' : '8.1.0', 'fixed_version' : '8.1.14' },
  { 'min_version' : '9.0.0', 'fixed_version' : '9.0.9' }
];

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