OracleVM 3.4 : microcode_ctl (OVMSA-2018-0003)

#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2018-0003.
#

include("compat.inc");

if (description)
{
  script_id(105643);
  script_version("3.2");
  script_cvs_date("Date: 2019/09/27 13:00:35");

  script_name(english:"OracleVM 3.4 : microcode_ctl (OVMSA-2018-0003)");
  script_summary(english:"Checks the RPM output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote OracleVM host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote OracleVM system is missing necessary patches to address
critical security updates :

  - Enable early microcode load to allow updating Broadwell
    model 79

  - Make sure 'modprobe microcode' is not executed on
    Broadwell model 79

  - Run dracut upon microcode update

  - Update Intel CPU microde for 06-3f-02, 06-4f-01, and
    06-55-04

  - Add amd microcode_amd_fam17h.bin data file

  - Resolves: #1527357

  - Update microcode data file to 20170707 revision.

  - Resolves: #1465143"
  );
  # https://oss.oracle.com/pipermail/oraclevm-errata/2018-January/000814.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?e08f2be2"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected microcode_ctl package."
  );
  script_set_attribute(attribute:"risk_factor", value:"High");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:microcode_ctl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/01/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/08");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"OracleVM Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/OracleVM/release");
if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
if (! preg(pattern:"^OVS" + "3\.4" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.4", "OracleVM " + release);
if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "OracleVM", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

flag = 0;
if (rpm_check(release:"OVS3.4", reference:"microcode_ctl-1.17-25.2.0.1.el6_9")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "microcode_ctl");
}