Palo Alto GlobalProtect Agent 5.0.x < 5.1.9 or 5.2.x < 5.2.8 Buffer Overflow

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

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

if (description)
{
  script_id(154336);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/15");

  script_cve_id("CVE-2021-3057");
  script_xref(name:"IAVA", value:"2021-A-0476-S");

  script_name(english:"Palo Alto GlobalProtect Agent 5.0.x < 5.1.9 or 5.2.x < 5.2.8 Buffer Overflow");

  script_set_attribute(attribute:"synopsis", value:
"A VPN client installed on remote host is affected by a buffer overflow vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Palo Alto GlobalProtect Agent installed on the remote host is 5.0.x < 5.1.9 or 5.2.x < 5.2.8. It is, 
therefore, affected by a buffer overflow vulnerability when connecting to portal or gateway. A unauthenticated remote 
attack could perform a man-in-the-middle attack to disrupt system processes and potentially execute arbitrary code 
with SYSTEM privileges.

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-2021-3057");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Palo Alto GlobalProtect Agent 5.1.9 / 5.2.8 or later");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  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:H/I:H/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-2021-3057");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/10/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/10/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/10/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:paloaltonetworks:globalprotect");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("palo_alto_globalprotect_agent_win_installed.nbin", "palo_alto_globalprotect_agent_mac_installed.nbin");
  script_require_keys("installed_sw/Palo Alto GlobalProtect Agent");

  exit(0);
}

include('vcf.inc');

var app_info = vcf::get_app_info(app:'Palo Alto GlobalProtect Agent');

vcf::check_granularity(app_info:app_info, sig_segments:3);

var constraints = 
  [
    {'min_version' : '5.0', 'fixed_version' : '5.1.9'},
    {'min_version' : '5.2', 'fixed_version' : '5.2.8'}
  ];

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