Palo Alto Cortex XDR Agent 6.1.x / 7.4.x / 7.5.x / 7.5.x-CE / 7.6.x / 7.7.x DoS

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(194452);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/10/23");

  script_cve_id("CVE-2022-0778");

  script_name(english:"Palo Alto Cortex XDR Agent 6.1.x / 7.4.x / 7.5.x / 7.5.x-CE / 7.6.x / 7.7.x DoS");

  script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote Windows host is affected by a denial of service vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Palo Alto Cortex XDR Agent installed on the remote Windows host is 6.1.x prior to 6.1.9.61370, 7.4.x, 
7.5.x prior to 7.5.3.60113, 7.5.x-CE prior to 7.5.100.60642-CE, 7.6.x prior to 7.6.2.60545 or 7.7.x prior to 7.7.0.60725.
It is, therefore, affected by a denial of service (DoS) vulnerability that causes the OpenSSL library to enter an
infinite loop when parsing an invalid certificate. This can result in a denial-of-service (DoS) to the application. An
attacker does not need a verified certificate to exploit this vulnerability because parsing a bad certificate triggers 
the infinite loop before the verification process is completed.

Note that Nessus has not tested for these issues 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-2022-0778");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Palo Alto Cortex XDR Agent version 6.1.9.61370, 7.5.3.60113, 7.5.100.60642-CE, 7.6.2.60545, 7.7.0.60725 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:POC/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:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-0778");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/03/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/03/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/04/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:paloaltonetworks:cortex_xdr_agent");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("palo_alto_cortex_xdr_agent_win_installed.nbin");
  script_require_keys("installed_sw/Palo Alto Cortex XDR Agent", "SMB/Registry/Enumerated");

  exit(0);
}

include('vcf.inc');
get_kb_item_or_exit('SMB/Registry/Enumerated');

var app_info = vcf::get_app_info(app:'Palo Alto Cortex XDR Agent', win_local:TRUE);

var constraints = [
  { 'min_version' : '6.1.0', 'fixed_version' : '6.1.9.61370' },
  { 'min_version' : '7.6.0', 'fixed_version' : '7.6.2.60545' },
  { 'min_version' : '7.7.0', 'fixed_version' : '7.7.0.60725' }
];

if (app_info['CE'])
  append_element(var:constraints, value:{'min_version' : '7.4.0', 'fixed_version' : '7.5.100.60642' });
else
  append_element(var:constraints, value:{'min_version' : '7.4.0', 'fixed_version' : '7.5.3.60113' });

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