RHEL 4 : bind (RHSA-2012:1110)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2012:1110. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(193979);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/11/04");

  script_cve_id("CVE-2012-1667");
  script_xref(name:"RHSA", value:"2012:1110");

  script_name(english:"RHEL 4 : bind (RHSA-2012:1110)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update for bind.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 4 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2012:1110 advisory.

    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 handled zero length resource data records.
    A malicious owner of a DNS domain could use this flaw to create
    specially-crafted DNS resource records that would cause a recursive
    resolver or secondary server to crash or, possibly, disclose portions of
    its memory. (CVE-2012-1667)

    Users of bind are advised to upgrade to these updated packages, which
    correct this issue. After installing the update, the BIND daemon (named)
    will be restarted automatically.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#important");
  script_set_attribute(attribute:"see_also", value:"http://www.isc.org/software/bind/advisories/cve-2012-1667");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=828078");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2012/rhsa-2012_1110.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?32c7d6ae");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2012:1110");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL bind package based on the guidance in RHSA-2012:1110.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-2012-1667");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/06/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/07/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/04/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:bind");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:bind-chroot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:bind-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:bind-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:bind-utils");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Red Hat Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '4')) audit(AUDIT_OS_NOT, 'Red Hat 4.x', 'Red Hat ' + os_ver);

if (!get_kb_item('Host/RedHat/rpm-list')) 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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var constraints = [
  {
    'repo_relative_urls': [
      'content/els/rhel/as/4/4AS/i386/os',
      'content/els/rhel/as/4/4AS/i386/source/SRPMS',
      'content/els/rhel/as/4/4AS/x86_64/os',
      'content/els/rhel/as/4/4AS/x86_64/source/SRPMS',
      'content/els/rhel/es/4/4ES/i386/os',
      'content/els/rhel/es/4/4ES/i386/source/SRPMS',
      'content/els/rhel/es/4/4ES/x86_64/os',
      'content/els/rhel/es/4/4ES/x86_64/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'bind-9.2.4-39.el4', 'cpu':'i386', 'release':'4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'20'},
      {'reference':'bind-9.2.4-39.el4', 'cpu':'x86_64', 'release':'4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'20'},
      {'reference':'bind-chroot-9.2.4-39.el4', 'cpu':'i386', 'release':'4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'20'},
      {'reference':'bind-chroot-9.2.4-39.el4', 'cpu':'x86_64', 'release':'4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'20'},
      {'reference':'bind-devel-9.2.4-39.el4', 'cpu':'i386', 'release':'4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'20'},
      {'reference':'bind-devel-9.2.4-39.el4', 'cpu':'x86_64', 'release':'4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'20'},
      {'reference':'bind-libs-9.2.4-39.el4', 'cpu':'i386', 'release':'4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'20'},
      {'reference':'bind-libs-9.2.4-39.el4', 'cpu':'x86_64', 'release':'4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'20'},
      {'reference':'bind-utils-9.2.4-39.el4', 'cpu':'i386', 'release':'4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'20'},
      {'reference':'bind-utils-9.2.4-39.el4', 'cpu':'x86_64', 'release':'4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'20'}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_array['pkgs'] ) {
    var reference = NULL;
    var _release = NULL;
    var sp = NULL;
    var _cpu = NULL;
    var el_string = NULL;
    var rpm_spec_vers_cmp = NULL;
    var epoch = NULL;
    var allowmaj = NULL;
    var exists_check = NULL;
    var cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
        rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
  exit(0);
}
else
{
  var 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-utils');
}