Oracle Linux 7 : bind (ELSA-2015-1443)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2015:1443 and 
# Oracle Linux Security Advisory ELSA-2015-1443 respectively.
#

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

if (description)
{
  script_id(84889);
  script_version("2.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2015-4620");
  script_bugtraq_id(75588);
  script_xref(name:"RHSA", value:"2015:1443");

  script_name(english:"Oracle Linux 7 : bind (ELSA-2015-1443)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2015:1443 :

Updated bind packages that fix one security issue are now available
for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Important
security impact. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available from the
CVE link in the References section.

The Berkeley Internet Name Domain (BIND) is an implementation of the
Domain Name System (DNS) protocols. BIND includes a DNS server
(named); a resolver library (routines for applications to use when
interfacing with DNS); and tools for verifying that the DNS server is
operating correctly.

A flaw was found in the way BIND performed DNSSEC validation. An
attacker able to make BIND (functioning as a DNS resolver with DNSSEC
validation enabled) resolve a name in an attacker-controlled domain
could cause named to exit unexpectedly with an assertion failure.
(CVE-2015-4620)

Red Hat would like to thank ISC for reporting this issue.

All bind users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing the
update, the BIND daemon (named) will be restarted automatically."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2015-July/005213.html"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected bind 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:oracle:linux:bind");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind-chroot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind-libs-lite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind-license");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind-lite-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind-sdb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind-sdb-chroot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/07/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/07/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/07/21");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/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);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 7", "Oracle Linux " + os_ver);

if (!get_kb_item("Host/RedHat/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, "Oracle Linux", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

flag = 0;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"bind-9.9.4-18.el7_1.2")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"bind-chroot-9.9.4-18.el7_1.2")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"bind-devel-9.9.4-18.el7_1.2")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"bind-libs-9.9.4-18.el7_1.2")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"bind-libs-lite-9.9.4-18.el7_1.2")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"bind-license-9.9.4-18.el7_1.2")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"bind-lite-devel-9.9.4-18.el7_1.2")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"bind-sdb-9.9.4-18.el7_1.2")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"bind-sdb-chroot-9.9.4-18.el7_1.2")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"bind-utils-9.9.4-18.el7_1.2")) 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, "bind / bind-chroot / bind-devel / bind-libs / bind-libs-lite / etc");
}