Ubuntu 14.04 LTS / 16.04 LTS : PHP vulnerabilities (USN-3902-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3902-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include('compat.inc');

if (description)
{
  script_id(122667);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");

  script_cve_id(
    "CVE-2019-9020",
    "CVE-2019-9021",
    "CVE-2019-9022",
    "CVE-2019-9023",
    "CVE-2019-9024"
  );
  script_xref(name:"USN", value:"3902-1");

  script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS : PHP vulnerabilities (USN-3902-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"It was discovered that the PHP XML-RPC module incorrectly handled
decoding XML data. A remote attacker could possibly use this issue to
cause PHP to crash, resulting in a denial of service. (CVE-2019-9020,
CVE-2019-9024)

It was discovered that the PHP PHAR module incorrectly handled certain
filenames. A remote attacker could possibly use this issue to cause
PHP to crash, resulting in a denial of service. (CVE-2019-9021)

It was discovered that PHP incorrectly parsed certain DNS responses. A
remote attacker could possibly use this issue to cause PHP to crash,
resulting in a denial of service. This issue only affected Ubuntu
16.04 LTS. (CVE-2019-9022)

It was discovered that PHP incorrectly handled mbstring regular
expressions. A remote attacker could possibly use this issue to cause
PHP to crash, resulting in a denial of service. (CVE-2019-9023).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-3902-1");
  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: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-2019-9023");

  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:"2019/02/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/03/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php5filter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libapache2-mod-php7.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libphp5-embed");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libphp7.0-embed");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php-pear");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-enchant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-gmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-mysqlnd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-pspell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-readline");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-recode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-sqlite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-sybase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-tidy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-xmlrpc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php5-xsl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-bcmath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-bz2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-dba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-enchant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-gmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-imap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-interbase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-mbstring");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-mcrypt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-opcache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-phpdbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-pspell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-readline");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-recode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-soap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-sybase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-tidy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-xml");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-xmlrpc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-xsl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:php7.0-zip");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"Ubuntu Security Notice (C) 2019-2023 Canonical, Inc. / NASL script (C) 2019-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('14.04' >< os_release || '16.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04 / 16.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) 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, 'Ubuntu', cpu);

var pkgs = [
    {'osver': '14.04', 'pkgname': 'libapache2-mod-php5', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'libapache2-mod-php5filter', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'libphp5-embed', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php-pear', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-cgi', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-cli', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-common', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-curl', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-dev', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-enchant', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-fpm', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-gd', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-gmp', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-intl', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-ldap', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-mysql', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-mysqlnd', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-odbc', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-pgsql', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-pspell', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-readline', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-recode', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-snmp', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-sqlite', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-sybase', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-tidy', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-xmlrpc', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '14.04', 'pkgname': 'php5-xsl', 'pkgver': '5.5.9+dfsg-1ubuntu4.27'},
    {'osver': '16.04', 'pkgname': 'libapache2-mod-php7.0', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'libphp7.0-embed', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-bcmath', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-bz2', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-cgi', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-cli', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-common', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-curl', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-dba', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-dev', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-enchant', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-fpm', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-gd', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-gmp', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-imap', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-interbase', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-intl', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-json', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-ldap', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-mbstring', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-mcrypt', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-mysql', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-odbc', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-opcache', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-pgsql', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-phpdbg', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-pspell', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-readline', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-recode', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-snmp', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-soap', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-sqlite3', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-sybase', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-tidy', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-xml', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-xmlrpc', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-xsl', 'pkgver': '7.0.33-0ubuntu0.16.04.2'},
    {'osver': '16.04', 'pkgname': 'php7.0-zip', 'pkgver': '7.0.33-0ubuntu0.16.04.2'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var osver = NULL;
  var pkgname = NULL;
  var pkgver = NULL;
  if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
  if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
  if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
  if (osver && pkgname && pkgver) {
    if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libapache2-mod-php5 / libapache2-mod-php5filter / etc');
}