PHP 8.0.x < 8.0.30 Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(179364);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/07");

  script_cve_id("CVE-2023-3823", "CVE-2023-3824");
  script_xref(name:"IAVA", value:"2023-A-0423-S");

  script_name(english:"PHP 8.0.x < 8.0.30 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The version PHP running on the remote web server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of PHP installed on the remote host is prior to 8.0.30. It is, therefore, affected by multiple
vulnerabilities as referenced in the Version 8.0.30 advisory.

  - In PHP version 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file,
    while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow,
    leading potentially to memory corruption or RCE. (CVE-2023-3824)

  - In PHP versions 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8 various XML functions
    rely on libxml global state to track configuration variables, like whether external entities are loaded.
    This state is assumed to be unchanged unless the user explicitly changes it by calling appropriate
    function. However, since the state is process-global, other modules - such as ImageMagick - may also use
    this library within the same process, and change that global state for their internal purposes, and leave
    it in a state where external entities loading is enabled. This can lead to the situation where external
    XML is parsed with external entities loaded, which can lead to disclosure of any local files accessible to
    PHP. This vulnerable state may persist in the same process across many requests, until the process is shut
    down. (CVE-2023-3823)

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:"http://php.net/ChangeLog-8.php#8.0.30");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PHP version 8.0.30 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:H/I:H/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-2023-3824");

  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:"2023/08/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/08/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/08/04");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:php:php");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("php_version.nasl");
  script_require_keys("www/PHP", "installed_sw/PHP");
  script_exclude_keys("Settings/disable_cgi_scanning");
  script_require_ports("Services/www", 80);

  exit(0);
}

include('vcf.inc');
include('http.inc');

var port = get_http_port(default:80, php:TRUE);
var app_info = vcf::get_app_info(app:'PHP', port:port, webapp:TRUE);

var backported = get_kb_item('www/php/' + port + '/' + app_info.version + '/backported');
if ((report_paranoia < 2) && backported)
  audit(AUDIT_BACKPORT_SERVICE, port, 'PHP ' + app_info.version + ' install');

var constraints = [
  { 'min_version' : '8.0.0alpha1', 'fixed_version' : '8.0.30' }
];
vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);