Amazon Linux 2 : php (ALASPHP8.0-2023-008)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALASPHP8.0-2023-008.
##

include('compat.inc');

if (description)
{
  script_id(181379);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/14");

  script_cve_id("CVE-2021-21704", "CVE-2021-21705");

  script_name(english:"Amazon Linux 2 : php (ALASPHP8.0-2023-008)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of php installed on the remote host is prior to 8.0.8-1. It is, therefore, affected by multiple
vulnerabilities as referenced in the ALAS2PHP8.0-2023-008 advisory.

  - In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using Firebird PDO
    driver extension, a malicious database server could cause crashes in various database functions, such as
    getAttribute(), execute(), fetch() and others by returning invalid response data that is not parsed
    correctly by the driver. This can result in crashes, denial of service or potentially memory corruption.
    (CVE-2021-21704)

  - In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation
    functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password
    field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially
    leading to other security implications - like contacting a wrong server or making a wrong access decision.
    (CVE-2021-21705)

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://alas.aws.amazon.com/AL2/ALASPHP8.0-2023-008.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2021-21704.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2021-21705.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update php' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  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:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-21705");

  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:"2021/07/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/08/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-bcmath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-dba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-embedded");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-enchant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-gmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-mbstring");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-mysqlnd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-opcache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-pdo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-process");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-pspell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-soap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-sodium");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-xml");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Amazon Linux Local Security Checks");

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

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");

  exit(0);
}

include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var pkgs = [
    {'reference':'php-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-bcmath-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-bcmath-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-cli-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-cli-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-common-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-common-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-dba-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-dba-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-dbg-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-dbg-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-debuginfo-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-debuginfo-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-devel-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-devel-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-embedded-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-embedded-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-enchant-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-enchant-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-fpm-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-fpm-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-gd-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-gd-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-gmp-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-gmp-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-intl-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-intl-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-ldap-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-ldap-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-mbstring-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-mbstring-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-mysqlnd-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-mysqlnd-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-odbc-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-odbc-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-opcache-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-opcache-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-pdo-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-pdo-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-pgsql-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-pgsql-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-process-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-process-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-pspell-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-pspell-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-snmp-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-snmp-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-soap-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-soap-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-sodium-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-sodium-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-xml-8.0.8-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'},
    {'reference':'php-xml-8.0.8-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'php8.0'}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "php / php-bcmath / php-cli / etc");
}