Palo Alto PAN-OS PAN-SA-2016-0005

# SPDX-FileCopyrightText: 2016 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/o:paloaltonetworks:pan-os";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.105562");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_version("2026-04-28T06:28:06+0000");
  script_cve_id("CVE-2016-3657");
  script_name("Palo Alto PAN-OS PAN-SA-2016-0005");

  script_xref(name:"URL", value:"https://securityadvisories.paloaltonetworks.com/Home/Detail/38");

  script_tag(name:"summary", value:"When a PAN-OS device is configured as a GlobalProtect portal, a vulnerability exists where an improper handling of a buffer involved in the processing of SSL VPN requests can result in device crash and possible remote code execution.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
  script_tag(name:"solution", value:"Update to PAN-OS releases 5.0.18, 6.0.13, 6.1.10 and 7.0.5 and newer");

  script_tag(name:"impact", value:"An attacker with network access to the vulnerable GlobalProtect portal may be able to perform a denial-of-service (DoS) attack on the device, and may be able to perform remote code execution on the affected device.");

  script_tag(name:"affected", value:"PAN-OS releases 5.0.17, 6.0.12, 6.1.9, 7.0.4 and prior");
  script_tag(name:"solution_type", value:"VendorFix");

  script_tag(name:"qod_type", value:"package");

  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-02-17 16:15:00 +0000 (Mon, 17 Feb 2020)");
  script_tag(name:"creation_date", value:"2016-02-25 11:50:51 +0100 (Thu, 25 Feb 2016)");
  script_category(ACT_GATHER_INFO);
  script_family("Palo Alto PAN-OS Local Security Checks");
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_dependencies("gb_paloalto_panos_consolidation.nasl");
  script_mandatory_keys("palo_alto_pan_os/version");

  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if( ! version = get_app_version( cpe:CPE, nofork:TRUE ) ) exit( 0 );

model = get_kb_item( "palo_alto_pan_os/model" );

# Advisory says "When a PAN-OS device is configured as a GlobalProtect portal, a vulnerability exists ..." so maybe
# we should execute "show global-protect-gateway flow" and check for "total tunnels configured" > 0 to avoid FPs?

if( version_in_range( version:version, test_version:"5.0", test_version2:"5.0.17" ) ) fix = '5.0.18';
if( version_in_range( version:version, test_version:"6.0", test_version2:"6.0.12" ) ) fix = '6.0.13';
if( version_in_range( version:version, test_version:"6.1", test_version2:"6.1.9" ) )  fix = '6.1.10';
if( version_in_range( version:version, test_version:"7.0", test_version2:"7.0.4" ) )  fix = '7.0.5';

if( fix )
{
  report = 'Installed version: ' + version + '\n' +
           'Fixed version:     ' + fix;

  if( model )
    report += '\nModel:             ' + model;

  security_message( port:0, data:report );
  exit( 0 );
}

exit( 99 );