Rocky Linux 8 : php:7.3 (RLSA-2019:3736)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Rocky Linux Security Advisory RLSA-2019:3736.
##

include('compat.inc');

if (description)
{
  script_id(184733);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/07");

  script_cve_id("CVE-2019-11043");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/04/15");
  script_xref(name:"RLSA", value:"2019:3736");
  script_xref(name:"CEA-ID", value:"CEA-2019-0695");

  script_name(english:"Rocky Linux 8 : php:7.3 (RLSA-2019:3736)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Rocky Linux host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the
RLSA-2019:3736 advisory.

  - In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24 and 7.3.x below 7.3.11 in certain configurations of
    FPM setup it is possible to cause FPM module to write past allocated buffers into the space reserved for
    FCGI protocol data, thus opening the possibility of remote code execution. (CVE-2019-11043)

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://errata.rockylinux.org/RLSA-2019:3736");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1766378");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  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:F/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:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-11043");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'PHP-FPM Underflow RCE');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/11/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:apcu-panel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:libzip");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:libzip-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:libzip-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:libzip-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:libzip-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:libzip-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:php-pear");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:php-pecl-apcu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:php-pecl-apcu-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:php-pecl-apcu-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:php-pecl-apcu-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:php-pecl-zip");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:php-pecl-zip-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:php-pecl-zip-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:rocky:linux:8");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Rocky 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/RockyLinux/release", "Host/RockyLinux/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RockyLinux/release');
if (isnull(os_release) || 'Rocky Linux' >!< os_release) audit(AUDIT_OS_NOT, 'Rocky Linux');
var os_ver = pregmatch(pattern: "Rocky(?: Linux)? release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Rocky Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Rocky Linux 8.x', 'Rocky Linux ' + os_ver);

if (!get_kb_item('Host/RockyLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Rocky Linux', cpu);

var module_ver = get_kb_item('Host/RockyLinux/appstream/php');
if (isnull(module_ver)) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module php:7.3');
if ('7.3' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module php:' + module_ver);

var appstreams = {
    'php:7.3': [
      {'reference':'apcu-panel-5.1.17-1.module+el8.4.0+414+2e7afcdd', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-debuginfo-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-debuginfo-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-debugsource-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-debugsource-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-devel-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-devel-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-tools-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-tools-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-tools-debuginfo-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libzip-tools-debuginfo-1.5.2-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pear-1.10.9-1.module+el8.4.0+414+2e7afcdd', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'php-pecl-apcu-5.1.17-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-apcu-5.1.17-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-apcu-debuginfo-5.1.17-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-apcu-debuginfo-5.1.17-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-apcu-debugsource-5.1.17-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-apcu-debugsource-5.1.17-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-apcu-devel-5.1.17-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-apcu-devel-5.1.17-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-zip-1.15.4-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-zip-1.15.4-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-zip-debuginfo-1.15.4-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-zip-debuginfo-1.15.4-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-zip-debugsource-1.15.4-1.module+el8.4.0+414+2e7afcdd', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'php-pecl-zip-debugsource-1.15.4-1.module+el8.4.0+414+2e7afcdd', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
    ]
};

var flag = 0;
var appstreams_found = 0;
foreach var module (keys(appstreams)) {
  var appstream = NULL;
  var appstream_name = NULL;
  var appstream_version = NULL;
  var appstream_split = split(module, sep:':', keep:FALSE);
  if (!empty_or_null(appstream_split)) {
    appstream_name = appstream_split[0];
    appstream_version = appstream_split[1];
    if (!empty_or_null(appstream_name)) appstream = get_one_kb_item('Host/RockyLinux/appstream/' + appstream_name);
  }
  if (!empty_or_null(appstream) && appstream_version == appstream || appstream_name == 'all') {
    appstreams_found++;
    foreach var package_array ( appstreams[module] ) {
      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 = 'Rocky-' + 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 (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module php:7.3');

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, 'apcu-panel / libzip / libzip-debuginfo / libzip-debugsource / etc');
}