Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : MySQL vulnerabilities (USN-4350-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4350-1. 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(136399);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");

  script_cve_id(
    "CVE-2020-2759",
    "CVE-2020-2760",
    "CVE-2020-2762",
    "CVE-2020-2763",
    "CVE-2020-2765",
    "CVE-2020-2780",
    "CVE-2020-2804",
    "CVE-2020-2812",
    "CVE-2020-2892",
    "CVE-2020-2893",
    "CVE-2020-2895",
    "CVE-2020-2896",
    "CVE-2020-2897",
    "CVE-2020-2898",
    "CVE-2020-2901",
    "CVE-2020-2903",
    "CVE-2020-2904",
    "CVE-2020-2921",
    "CVE-2020-2922",
    "CVE-2020-2923",
    "CVE-2020-2924",
    "CVE-2020-2925",
    "CVE-2020-2926",
    "CVE-2020-2928",
    "CVE-2020-2930"
  );
  script_xref(name:"USN", value:"4350-1");

  script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : MySQL vulnerabilities (USN-4350-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"Multiple security issues were discovered in MySQL and this update
includes new upstream MySQL versions to fix these issues.

MySQL has been updated to 8.0.80 in Ubuntu 19.10 and Ubuntu 20.04 LTS.
Ubuntu 16.04 LTS and Ubuntu 18.04 LTS have been updated to MySQL
5.7.30.

In addition to security fixes, the updated packages contain bug fixes,
new features, and possibly incompatible changes.

Please see the following for more information :

https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-30.html

https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-20.html

https://www.oracle.com/security-alerts/cpuapr2020.html

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-4350-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-2760");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-server-5.7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-server-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-server-core-5.7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-server-core-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-source-5.7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-source-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-testsuite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-testsuite-5.7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-testsuite-8.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmysqlclient-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmysqlclient20");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmysqlclient21");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmysqld-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-client-5.7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-client-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-client-core-5.7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-client-core-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-router");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mysql-server");
  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) 2020-2023 Canonical, Inc. / NASL script (C) 2020-2023 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 (! ('16.04' >< os_release || '18.04' >< os_release || '20.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04 / 20.04', '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': '16.04', 'pkgname': 'libmysqlclient-dev', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'libmysqlclient20', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'libmysqld-dev', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'mysql-client', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'mysql-client-5.7', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'mysql-client-core-5.7', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'mysql-common', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'mysql-server', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'mysql-server-5.7', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'mysql-server-core-5.7', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'mysql-source-5.7', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'mysql-testsuite', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '16.04', 'pkgname': 'mysql-testsuite-5.7', 'pkgver': '5.7.30-0ubuntu0.16.04.1'},
    {'osver': '18.04', 'pkgname': 'libmysqlclient-dev', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'libmysqlclient20', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'libmysqld-dev', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mysql-client', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mysql-client-5.7', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mysql-client-core-5.7', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mysql-server', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mysql-server-5.7', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mysql-server-core-5.7', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mysql-source-5.7', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mysql-testsuite', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mysql-testsuite-5.7', 'pkgver': '5.7.30-0ubuntu0.18.04.1'},
    {'osver': '20.04', 'pkgname': 'libmysqlclient-dev', 'pkgver': '8.0.20-0ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'libmysqlclient21', 'pkgver': '8.0.20-0ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'mysql-client', 'pkgver': '8.0.20-0ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'mysql-client-8.0', 'pkgver': '8.0.20-0ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'mysql-client-core-8.0', 'pkgver': '8.0.20-0ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'mysql-router', 'pkgver': '8.0.20-0ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'mysql-server', 'pkgver': '8.0.20-0ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'mysql-server-8.0', 'pkgver': '8.0.20-0ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'mysql-server-core-8.0', 'pkgver': '8.0.20-0ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'mysql-source-8.0', 'pkgver': '8.0.20-0ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'mysql-testsuite', 'pkgver': '8.0.20-0ubuntu0.20.04.1'},
    {'osver': '20.04', 'pkgname': 'mysql-testsuite-8.0', 'pkgver': '8.0.20-0ubuntu0.20.04.1'}
];

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_WARNING,
    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, 'libmysqlclient-dev / libmysqlclient20 / libmysqlclient21 / etc');
}