openSUSE 15 : Recommended update for php7 (openSUSE-SU-2021:3943-1)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# openSUSE Security Update openSUSE-SU-2021:3943-1. The text itself
# is copyright (C) SUSE.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(155876);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/22");

  script_cve_id("CVE-2021-21703", "CVE-2021-21707");
  script_xref(name:"IAVA", value:"2021-A-0503-S");
  script_xref(name:"IAVA", value:"2021-A-0566-S");

  script_name(english:"openSUSE 15 : Recommended update for php7 (openSUSE-SU-2021:3943-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in
the openSUSE-SU-2021:3943-1 advisory.

  - In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running
    PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-
    privileged users, it is possible for the child processes to access memory shared with the main process and
    write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and
    writes, which can be used to escalate privileges from local unprivileged user to the root user.
    (CVE-2021-21703)

  - In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing
    functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains
    URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus
    interpreting the filename differently from what the user intended, which may lead it to reading a
    different file than intended. (CVE-2021-21707)

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://bugzilla.suse.com/1175508");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1192050");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1193041");
  # https://lists.opensuse.org/archives/list/[email protected]/thread/D5SCXUGIHHCMMDJ4KQPRDMJZB4DQFEII/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1f525b31");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-21703");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-21707");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/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-2021-21703");

  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:"2021/10/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/12/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/12/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:apache2-mod_php7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-bcmath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-bz2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-calendar");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-ctype");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-dba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-dom");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-embed");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-enchant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-exif");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-fastcgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-fileinfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-firebird");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-ftp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-gettext");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-gmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-iconv");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-mbstring");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-opcache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-pcntl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-pdo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-phar");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-posix");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-readline");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-shmop");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-soap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-sockets");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-sodium");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-sqlite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-sysvmsg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-sysvsem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-sysvshm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-tidy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-tokenizer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-xmlreader");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-xmlrpc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-xmlwriter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-xsl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-zip");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:php7-zlib");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.3");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item('Host/SuSE/release');
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, 'openSUSE');
var os_ver = pregmatch(pattern: "^SUSE([\d.]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'openSUSE');
os_ver = os_ver[1];
if (release !~ "^(SUSE15\.3)$") audit(AUDIT_OS_RELEASE_NOT, 'openSUSE', '15.3', release);
if (!get_kb_item("Host/SuSE/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, 'openSUSE ' + os_ver, cpu);

var pkgs = [
    {'reference':'apache2-mod_php7-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-bcmath-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-bz2-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-calendar-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-ctype-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-curl-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-dba-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-devel-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-dom-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-embed-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-enchant-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-exif-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-fastcgi-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-fileinfo-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-firebird-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-fpm-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-ftp-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-gd-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-gettext-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-gmp-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-iconv-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-intl-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-json-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-ldap-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-mbstring-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-mysql-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-odbc-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-opcache-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-openssl-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-pcntl-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-pdo-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-pgsql-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-phar-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-posix-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-readline-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-shmop-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-snmp-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-soap-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-sockets-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-sodium-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-sqlite-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-sysvmsg-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-sysvsem-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-sysvshm-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-test-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-tidy-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-tokenizer-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-xmlreader-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-xmlrpc-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-xmlwriter-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-xsl-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-zip-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'php7-zlib-7.4.6-3.29.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var reference = NULL;
  var release = NULL;
  var cpu = NULL;
  var rpm_spec_vers_cmp = 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['cpu'])) cpu = package_array['cpu'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && release) {
    if (rpm_check(release:release, cpu:cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) 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, 'apache2-mod_php7 / php7 / php7-bcmath / php7-bz2 / php7-calendar / etc');
}