RHEL 6 : openssl (RHSA-2014:1054)

#%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-2014:1054. The text 
# itself is copyright (C) Red Hat, Inc.
#

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

if (description)
{
  script_id(79040);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/03");

  script_cve_id(
    "CVE-2014-3505",
    "CVE-2014-3506",
    "CVE-2014-3507",
    "CVE-2014-3508",
    "CVE-2014-3509",
    "CVE-2014-3510",
    "CVE-2014-3511"
  );
  script_bugtraq_id(
    69075,
    69076,
    69078,
    69079,
    69081,
    69082,
    69084
  );
  script_xref(name:"RHSA", value:"2014:1054");

  script_name(english:"RHEL 6 : openssl (RHSA-2014:1054)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for openssl.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2014:1054 advisory.

    OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL),
    Transport Layer Security (TLS), and Datagram Transport Layer Security
    (DTLS) protocols, as well as a full-strength, general purpose cryptography
    library.

    A race condition was found in the way OpenSSL handled ServerHello messages
    with an included Supported EC Point Format extension. A malicious server
    could possibly use this flaw to cause a multi-threaded TLS/SSL client using
    OpenSSL to write into freed memory, causing the client to crash or execute
    arbitrary code. (CVE-2014-3509)

    It was discovered that the OBJ_obj2txt() function could fail to properly
    NUL-terminate its output. This could possibly cause an application using
    OpenSSL functions to format fields of X.509 certificates to disclose
    portions of its memory. (CVE-2014-3508)

    A flaw was found in the way OpenSSL handled fragmented handshake packets.
    A man-in-the-middle attacker could use this flaw to force a TLS/SSL server
    using OpenSSL to use TLS 1.0, even if both the client and the server
    supported newer protocol versions. (CVE-2014-3511)

    Multiple flaws were discovered in the way OpenSSL handled DTLS packets.
    A remote attacker could use these flaws to cause a DTLS server or client
    using OpenSSL to crash or use excessive amounts of memory. (CVE-2014-3505,
    CVE-2014-3506, CVE-2014-3507)

    A NULL pointer dereference flaw was found in the way OpenSSL performed a
    handshake when using the anonymous Diffie-Hellman (DH) key exchange. A
    malicious server could cause a DTLS client using OpenSSL to crash if that
    client had anonymous DH cipher suites enabled. (CVE-2014-3510)

    All OpenSSL users are advised to upgrade to these updated packages, which
    contain backported patches to correct these issues. For the update to take
    effect, all services linked to the OpenSSL library must be restarted or the
    system rebooted.

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2014/rhsa-2014_1054.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ab7f9ef6");
  script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/secadv_20140806.txt");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2014:1054");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#moderate");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1127490");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1127498");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1127499");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1127500");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1127502");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1127503");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1127504");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL openssl package based on the guidance in RHSA-2014:1054.");
  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: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-2014-3509");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2014-3507");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(200, 362, 390, 400, 401, 476, 672);
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/08/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-static");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  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) 2014-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("redhat_repos.nasl", "ssh_get_info.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: '6')) audit(AUDIT_OS_NOT, 'Red Hat 6.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/dist/rhs/server/2.1/x86_64/debug',
      'content/dist/rhs/server/2.1/x86_64/os',
      'content/dist/rhs/server/2.1/x86_64/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'openssl-1.0.1e-16.el6_5.15', 'cpu':'x86_64', 'release':'6', 'el_string':'el6_5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'glusterfs'},
      {'reference':'openssl-devel-1.0.1e-16.el6_5.15', 'cpu':'x86_64', 'release':'6', 'el_string':'el6_5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'glusterfs'},
      {'reference':'openssl-perl-1.0.1e-16.el6_5.15', 'cpu':'x86_64', 'release':'6', 'el_string':'el6_5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'glusterfs'},
      {'reference':'openssl-static-1.0.1e-16.el6_5.15', 'cpu':'x86_64', 'release':'6', 'el_string':'el6_5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'glusterfs'}
    ]
  }
];

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_WARNING,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'openssl / openssl-devel / openssl-perl / openssl-static');
}