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nessusThis script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.PALO_ALTO_CVE-2022-0023.NASL
HistoryApr 13, 2022 - 12:00 a.m.

Palo Alto Networks PAN-OS 8.1.x < 8.1.22 / 9.0.x < 9.0.16 / 9.1.x < 9.1.13 / 10.0.x < 10.0.10 / 10.1.x < 10.1.5 Vulnerability

2022-04-1300:00:00
This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
23
palo alto networks
pan-os
dns proxy
vulnerability
cve-2022-0023
mitm
denial-of-service

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

34.8%

The version of Palo Alto Networks PAN-OS running on the remote host is 8.1.x prior to 8.1.22 or 9.0.x prior to 9.0.16 or 9.1.x prior to 9.1.13 or 10.0.x prior to 10.0.10 or 10.1.x prior to 10.1.5. It is, therefore, affected by a vulnerability.

  • An improper handling of exceptional conditions vulnerability exists in the DNS proxy feature of Palo Alto Networks PAN-OS software that enables a meddler-in-the-middle (MITM) to send specifically crafted traffic to the firewall that causes the service to restart unexpectedly. Repeated attempts to send this request result in denial-of-service to all PAN-OS services by restarting the device in maintenance mode.
    (CVE-2022-0023)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

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

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

if (description)
{
  script_id(159713);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/26");

  script_cve_id("CVE-2022-0023");

  script_name(english:"Palo Alto Networks PAN-OS 8.1.x < 8.1.22 / 9.0.x < 9.0.16 / 9.1.x < 9.1.13 / 10.0.x < 10.0.10 / 10.1.x < 10.1.5 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 8.1.x prior to 8.1.22 or 9.0.x prior to 9.0.16 or
9.1.x prior to 9.1.13 or 10.0.x prior to 10.0.10 or 10.1.x prior to 10.1.5. It is, therefore, affected by a
vulnerability.

  - An improper handling of exceptional conditions vulnerability exists in the DNS proxy feature of Palo Alto
    Networks PAN-OS software that enables a meddler-in-the-middle (MITM) to send specifically crafted traffic
    to the firewall that causes the service to restart unexpectedly. Repeated attempts to send this request
    result in denial-of-service to all PAN-OS services by restarting the device in maintenance mode.
    (CVE-2022-0023)

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-2022-0023");
  script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/755.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PAN-OS 8.1.22 / 9.0.16 / 9.1.13 / 10.0.10 / 10.1.5 or later");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:H/PR:N/UI:N/S:U/C:N/I:N/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-2022-0023");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(755);

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/04/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/04/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/04/13");

  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_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 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' : '8.1.22' },
  { 'min_version' : '9.0.0', 'fixed_version' : '9.0.16' },
  { 'min_version' : '9.1.0', 'fixed_version' : '9.1.13' },
  { 'min_version' : '10.0.0', 'fixed_version' : '10.0.10' },
  { 'min_version' : '10.1.0', 'fixed_version' : '10.1.5' }
];

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

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

34.8%

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