Amazon Linux AMI : php73 (ALAS-2024-1918)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2024-1918.
##

include('compat.inc');

if (description)
{
  script_id(190018);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/20");

  script_cve_id(
    "CVE-2019-11044",
    "CVE-2019-11045",
    "CVE-2019-11046",
    "CVE-2019-11047",
    "CVE-2019-11049",
    "CVE-2019-11050",
    "CVE-2019-18218"
  );

  script_name(english:"Amazon Linux AMI : php73 (ALAS-2024-1918)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux AMI host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of php73 installed on the remote host is prior to 7.3.13-1.22. It is, therefore, affected by multiple
vulnerabilities as referenced in the ALAS-2024-1918 advisory.

  - In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 on Windows, PHP link() function accepts
    filenames with embedded \0 byte and treats them as terminating at that byte. This could lead to security
    vulnerabilities, e.g. in applications checking paths that the code is allowed to access. (CVE-2019-11044)

  - In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP DirectoryIterator class accepts
    filenames with embedded \0 byte and treats them as terminating at that byte. This could lead to security
    vulnerabilities, e.g. in applications checking paths that the code is allowed to access. (CVE-2019-11045)

  - In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP bcmath extension functions on some
    systems, including Windows, can be tricked into reading beyond the allocated space by supplying it with
    string containing characters that are identified as numeric by the OS but aren't ASCII numbers. This can
    read to disclosure of the content of some memory locations. (CVE-2019-11046)

  - When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in
    PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 it is possible to supply it with data what
    will cause it to read past the allocated buffer. This may lead to information disclosure or crash.
    (CVE-2019-11047, CVE-2019-11050)

  - In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function,
    due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in
    lowercase, this can result in double-freeing certain memory locations. (CVE-2019-11049)

  - cdf_read_property_info in cdf.c in file through 5.37 does not restrict the number of CDF_VECTOR elements,
    which allows a heap-based buffer overflow (4-byte out-of-bounds write). (CVE-2019-18218)

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/ALAS-2024-1918.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2019-11044.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2019-11045.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2019-11046.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2019-11047.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2019-11049.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2019-11050.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2019-18218.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update php73' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/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: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-2019-11049");

  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:"2019/10/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/02/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-bcmath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-dba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-embedded");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-enchant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-gmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-imap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-mbstring");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-mysqlnd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-opcache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-pdo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-pdo-dblib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-process");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-pspell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-recode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-soap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-tidy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-xml");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-xmlrpc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
  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) 2024 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 != "A")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}

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

var pkgs = [
    {'reference':'php73-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-bcmath-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-bcmath-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-cli-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-cli-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-common-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-common-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-dba-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-dba-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-dbg-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-dbg-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-debuginfo-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-debuginfo-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-devel-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-devel-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-embedded-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-embedded-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-enchant-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-enchant-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-fpm-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-fpm-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-gd-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-gd-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-gmp-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-gmp-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-imap-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-imap-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-intl-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-intl-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-json-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-json-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-ldap-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-ldap-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-mbstring-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-mbstring-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-mysqlnd-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-mysqlnd-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-odbc-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-odbc-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-opcache-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-opcache-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-pdo-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-pdo-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-pdo-dblib-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-pdo-dblib-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-pgsql-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-pgsql-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-process-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-process-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-pspell-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-pspell-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-recode-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-recode-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-snmp-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-snmp-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-soap-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-soap-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-tidy-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-tidy-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-xml-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-xml-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-xmlrpc-7.3.13-1.22.amzn1', 'cpu':'i686', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php73-xmlrpc-7.3.13-1.22.amzn1', 'cpu':'x86_64', 'release':'ALA', 'rpm_spec_vers_cmp':TRUE}
];

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_HOLE,
      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, "php73 / php73-bcmath / php73-cli / etc");
}