MiracleLinux 7 : samba-4.2.3-11.el7 (AXSA:2016-023:01)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Miracle Linux Security Advisory AXSA:2016-023:01.
##

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

if (description)
{
  script_id(289407);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/01/16");

  script_cve_id(
    "CVE-2015-3223",
    "CVE-2015-5252",
    "CVE-2015-5296",
    "CVE-2015-5299",
    "CVE-2015-7540"
  );

  script_name(english:"MiracleLinux 7 : samba-4.2.3-11.el7 (AXSA:2016-023:01)");

  script_set_attribute(attribute:"synopsis", value:
"The remote MiracleLinux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the
AXSA:2016-023:01 advisory.

    Samba is the standard Windows interoperability suite of programs for Linux and Unix.
    Security issues fixed with this release:
    CVE-2015-3223
    The ldb_wildcard_compare function in ldb_match.c in ldb before 1.1.24,
    as used in the AD LDAP server in Samba 4.x before 4.1.22, 4.2.x before
    4.2.7, and 4.3.x before 4.3.3, mishandles certain zero values, which
    allows remote attackers to cause a denial of service (infinite loop)
    via crafted packets.
    CVE-2015-5252
    vfs.c in smbd in Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7,
    and 4.3.x before 4.3.3, when share names with certain substring
    relationships exist, allows remote attackers to bypass intended
    file-access restrictions via a symlink that points outside of a share.
    CVE-2015-5296
    Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before
    4.3.3 supports connections that are encrypted but unsigned, which
    allows man-in-the-middle attackers to conduct encrypted-to-unencrypted
    downgrade attacks by modifying the client-server data stream, related
    to clidfs.c, libsmb_server.c, and smbXcli_base.c.
    CVE-2015-5299
    The shadow_copy2_get_shadow_copy_data function in
    modules/vfs_shadow_copy2.c in Samba 3.x and 4.x before 4.1.22, 4.2.x
    before 4.2.7, and 4.3.x before 4.3.3 does not verify that the
    DIRECTORY_LIST access right has been granted, which allows remote
    attackers to access snapshots by visiting a shadow copy directory.
    CVE-2015-7540
    The LDAP server in the AD domain controller in Samba 4.x before 4.1.22
    does not check return values to ensure successful ASN.1 memory
    allocation, which allows remote attackers to cause a denial of service
    (memory consumption and daemon crash) via crafted packets.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues 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/6383");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-5299");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2015-5252");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/01/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/01/16");

  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-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ctdb-devel-4.2.3-11.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ctdb-devel-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'ctdb-tests-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libsmbclient-4.2.3-11.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libsmbclient-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libwbclient-4.2.3-11.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libwbclient-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-client-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-client-libs-4.2.3-11.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-client-libs-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-common-4.2.3-11.el7', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-common-libs-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-common-tools-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-libs-4.2.3-11.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-libs-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-python-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-winbind-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-winbind-clients-4.2.3-11.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-winbind-modules-4.2.3-11.el7', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'samba-winbind-modules-4.2.3-11.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');
}