MiracleLinux 7 : samba-4.2.10-7.el7 (AXSA:2016-578:06)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Miracle Linux Security Advisory AXSA:2016-578:06.
##

include('compat.inc');

if (description)
{
  script_id(291547);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/01/19");

  script_cve_id("CVE-2016-2119");

  script_name(english:"MiracleLinux 7 : samba-4.2.10-7.el7 (AXSA:2016-578:06)");

  script_set_attribute(attribute:"synopsis", value:
"The remote MiracleLinux host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote MiracleLinux 7 host has packages installed that are affected by a vulnerability as referenced in the
AXSA:2016-578:06 advisory.

    Samba is the standard Windows interoperability suite of programs for Linux and Unix.
    Security issues fixed with this release:
    CVE-2016-2119
    libcli/smb/smbXcli_base.c in Samba 4.x before 4.2.14, 4.3.x before
    4.3.11, and 4.4.x before 4.4.5 allows man-in-the-middle attackers to
    bypass a client-signing protection mechanism, and consequently spoof
    SMB2 and SMB3 servers, via the (1) SMB2_SESSION_FLAG_IS_GUEST or (2)
    SMB2_SESSION_FLAG_IS_NULL flag.
    Fixed bugs:
    * Previously, the net command in some cases failed to join the client to Active Directory (AD) because
    the permissions setting prevented modification of the supported Kerberos encryption type LDAP attribute.
    With this update, Samba has been fixed to allow joining an AD domain as a user. In addition, Samba now
    uses the machine account credentials to set up the Kerberos encryption types within AD for the joined
    machine. As a result, using net to join a domain now works more reliably.
    * Previously, the idmap_hash module worked incorrectly when it was used together with other modules. As a
    consequence, user and group IDs were not mapped properly. A patch has been applied to skip already
    configured modules. Now, the hash module can be used as the default idmap configuration back end and IDs
    are resolved correctly.

Tenable has extracted the preceding description block directly from the MiracleLinux 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://tsn.miraclelinux.com/en/node/7010");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/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-2016-2119");

  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:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/07/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/07/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/01/19");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:ctdb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:ctdb-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:ctdb-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:libsmbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:libwbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:samba-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:samba-client-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:samba-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:samba-common-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:samba-common-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:samba-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:samba-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:samba-winbind");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:samba-winbind-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:samba-winbind-modules");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:miracle:linux:7");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Miracle Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'MIRACLE LINUX' >!< os_product) audit(AUDIT_OS_NOT, 'MIRACLE LINUX');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'MIRACLE LINUX');
if (! preg(pattern:"^7([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'MiracleLinux 7.x', 'MIRACLE LINUX ' + os_version);

if (!get_kb_item('Host/MiracleLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('aarch64' >!< cpu && 'ppc' >!< cpu && 's390' >!< cpu && 'x86_64' >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'MIRACLE LINUX', cpu);

var constraints = [
  {
    'release': '7',
    'pkgs': [
      {'reference':'ctdb-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ctdb-devel-4.2.10-7.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ctdb-devel-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ctdb-tests-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libsmbclient-4.2.10-7.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libsmbclient-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libwbclient-4.2.10-7.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libwbclient-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-client-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-client-libs-4.2.10-7.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-client-libs-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-common-4.2.10-7.el7', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-common-libs-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-common-tools-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-libs-4.2.10-7.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-libs-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-python-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-winbind-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-winbind-clients-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-winbind-modules-4.2.10-7.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-winbind-modules-4.2.10-7.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    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 &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(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)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'ctdb / ctdb-devel / ctdb-tests / libsmbclient / libwbclient / samba / etc');
}