Ubuntu 16.04 LTS / 18.04 LTS : OpenJDK vulnerabilities (USN-4257-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4257-1. 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(133353);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/27");

  script_cve_id(
    "CVE-2020-2583",
    "CVE-2020-2590",
    "CVE-2020-2593",
    "CVE-2020-2601",
    "CVE-2020-2604",
    "CVE-2020-2654",
    "CVE-2020-2655",
    "CVE-2020-2659"
  );
  script_xref(name:"USN", value:"4257-1");

  script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS : OpenJDK vulnerabilities (USN-4257-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as
referenced in the USN-4257-1 advisory.

    It was discovered that OpenJDK incorrectly handled exceptions during deserialization in
    BeanContextSupport. An attacker could possibly use this issue to cause a denial of service or other
    unspecified impact. (CVE-2020-2583)

    It was discovered that OpenJDK incorrectly validated properties of SASL messages included in Kerberos
    GSSAPI. An unauthenticated remote attacker with network access via Kerberos could possibly use this issue
    to insert, modify or obtain sensitive information. (CVE-2020-2590)

    It was discovered that OpenJDK incorrectly validated URLs. An attacker could possibly use this issue to
    insert, edit or obtain sensitive information. (CVE-2020-2593)

    It was discovered that OpenJDK Security component still used MD5 algorithm. A remote attacker could
    possibly use this issue to obtain sensitive information. (CVE-2020-2601)

    It was discovered that OpenJDK incorrectly handled the application of serialization filters. An attacker
    could possibly use this issue to bypass the intended filter during serialization. (CVE-2020-2604)

    Bo Zhang and Long Kuan discovered that OpenJDK incorrectly handled X.509 certificates. An attacker could
    possibly use this issue to cause a denial of service. (CVE-2020-2654)

    Bengt Jonsson, Juraj Somorovsky, Kostis Sagonas, Paul Fiterau Brostean and Robert Merget discovered that
    OpenJDK incorrectly handled CertificateVerify TLS handshake messages. A remote attacker could possibly use
    this issue to insert, edit or obtain sensitive information. This issue only affected OpenJDK 11.
    (CVE-2020-2655)

    It was discovered that OpenJDK incorrectly enforced the limit of datagram sockets that can be created by a
    code running within a Java sandbox. An attacker could possibly use this issue to bypass the sandbox
    restrictions causing a denial of service. This issue only affected OpenJDK 8. (CVE-2020-2659)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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://ubuntu.com/security/notices/USN-4257-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/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:H/PR:N/UI:N/S:U/C:H/I:H/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-2020-2604");

  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:"2020/01/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/30");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jdk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jdk-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jre");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jre-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jre-zero");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-11-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-demo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jdk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jdk-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre-jamvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre-zero");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-source");
  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:"p-cpe:/a:canonical:ubuntu_linux:openjdk-11-demo");
  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) 2020-2024 Canonical, Inc. / NASL script (C) 2020-2024 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)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04', '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': 'openjdk-8-demo', 'pkgver': '8u242-b08-0ubuntu3~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jdk', 'pkgver': '8u242-b08-0ubuntu3~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jdk-headless', 'pkgver': '8u242-b08-0ubuntu3~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jre', 'pkgver': '8u242-b08-0ubuntu3~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jre-headless', 'pkgver': '8u242-b08-0ubuntu3~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jre-jamvm', 'pkgver': '8u242-b08-0ubuntu3~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jre-zero', 'pkgver': '8u242-b08-0ubuntu3~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-source', 'pkgver': '8u242-b08-0ubuntu3~16.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-11-demo', 'pkgver': '11.0.6+10-1ubuntu1~18.04.1'},
    {'osver': '18.04', 'pkgname': 'openjdk-11-jdk', 'pkgver': '11.0.6+10-1ubuntu1~18.04.1'},
    {'osver': '18.04', 'pkgname': 'openjdk-11-jdk-headless', 'pkgver': '11.0.6+10-1ubuntu1~18.04.1'},
    {'osver': '18.04', 'pkgname': 'openjdk-11-jre', 'pkgver': '11.0.6+10-1ubuntu1~18.04.1'},
    {'osver': '18.04', 'pkgname': 'openjdk-11-jre-headless', 'pkgver': '11.0.6+10-1ubuntu1~18.04.1'},
    {'osver': '18.04', 'pkgname': 'openjdk-11-jre-zero', 'pkgver': '11.0.6+10-1ubuntu1~18.04.1'},
    {'osver': '18.04', 'pkgname': 'openjdk-11-source', 'pkgver': '11.0.6+10-1ubuntu1~18.04.1'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-demo', 'pkgver': '8u242-b08-0ubuntu3~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-jdk', 'pkgver': '8u242-b08-0ubuntu3~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-jdk-headless', 'pkgver': '8u242-b08-0ubuntu3~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-jre', 'pkgver': '8u242-b08-0ubuntu3~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-jre-headless', 'pkgver': '8u242-b08-0ubuntu3~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-jre-zero', 'pkgver': '8u242-b08-0ubuntu3~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-source', 'pkgver': '8u242-b08-0ubuntu3~18.04'}
];

var flag = 0;
foreach var 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)
{
  var extra = '';
  extra += ubuntu_report_get();
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : extra
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'openjdk-11-demo / openjdk-11-jdk / openjdk-11-jdk-headless / etc');
}