openSUSE Security Update : ntp (openSUSE-2016-750)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2016-750.
#
# The text description of this plugin is (C) SUSE LLC.
#

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

if (description)
{
  script_id(91721);
  script_version("2.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2016-4953", "CVE-2016-4954", "CVE-2016-4955", "CVE-2016-4956", "CVE-2016-4957");

  script_name(english:"openSUSE Security Update : ntp (openSUSE-2016-750)");
  script_summary(english:"Check for the openSUSE-2016-750 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"ntp was updated to version 4.2.8p8 to fix five security issues.

These security issues were fixed :

  - CVE-2016-4953: Bad authentication demobilizes ephemeral
    associations (bsc#982065).

  - CVE-2016-4954: Processing spoofed server packets
    (bsc#982066).

  - CVE-2016-4955: Autokey association reset (bsc#982067).

  - CVE-2016-4956: Broadcast interleave (bsc#982068).

  - CVE-2016-4957: CRYPTO_NAK crash (bsc#982064).

These non-security issues were fixed :

  - Keep the parent process alive until the daemon has
    finished initialisation, to make sure that the PID file
    exists when the parent returns.

  - bsc#979302: Change the process name of the forking DNS
    worker process to avoid the impression that ntpd is
    started twice.

  - bsc#981422: Don't ignore SIGCHILD because it breaks
    wait().

  - bsc#979981: ntp-wait does not accept fractional seconds,
    so use 1 instead of 0.2 in ntp-wait.service.

  - Separate the creation of ntp.keys and key #1 in it to
    avoid problems when upgrading installations that have
    the file, but no key #1, which is needed e.g. by 'rcntp
    addserver'.

This update was imported from the SUSE:SLE-12-SP1:Update update
project."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=979302"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=979981"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=981422"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=982056"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=982064"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=982065"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=982066"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=982067"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=982068"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected ntp packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ntp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ntp-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ntp-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/21");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2021 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

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

  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/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE42\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.1", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE42.1", reference:"ntp-4.2.8p8-24.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"ntp-debuginfo-4.2.8p8-24.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"ntp-debugsource-4.2.8p8-24.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ntp / ntp-debuginfo / ntp-debugsource");
}