openSUSE Security Update : dhcp (openSUSE-SU-2011:1021-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update dhcp-5081.
#
# The text description of this plugin is (C) SUSE LLC.
#

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

if (description)
{
  script_id(75466);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2011-2748", "CVE-2011-2749");

  script_name(english:"openSUSE Security Update : dhcp (openSUSE-SU-2011:1021-1)");
  script_summary(english:"Check for the dhcp-5081 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update of dhcp fixes two Denial of Service (CVE-2011-2748,
CVE-2011-2749) vulnerabilities caused by specially crafted BOOTP
packets.

Also following bugs were fixed :

  - Moved server pid files into chroot directory even chroot
    is not used and create a link in /var/run, so it can
    write one when started as user without chroot and avoid
    stop problems when the chroot sysconfig setting changed
    (bnc#712438).

  - Fixed dhclient-script to not remove alias IP when it
    didn't changed to not wipe out iptables connmark when
    renewing the lease (bnc#700771). Thanks to James Carter
    for the patch.

  - Removed GPL licensed files (bind-*/contrib/dbus) from
    bind.tgz to ensure, they're not used to build non-GPL
    dhcp.

  - Disabled log-info level messages in dhclient(6) quiet
    mode to avoid excessive logging of non-critical messages
    (bnc#711420)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=700771"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=711420"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=712438"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=712653"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=714004"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2011-09/msg00014.html"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected dhcp packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-relay");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:dhcp-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.3");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/08/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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 !~ "^(SUSE11\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.3", 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:"SUSE11.3", reference:"dhcp-4.1.2.ESV.1-0.10.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", reference:"dhcp-client-4.1.2.ESV.1-0.10.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", reference:"dhcp-devel-4.1.2.ESV.1-0.10.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", reference:"dhcp-relay-4.1.2.ESV.1-0.10.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", reference:"dhcp-server-4.1.2.ESV.1-0.10.1") ) 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, "dhcp");
}