openSUSE 15 Security Update : libcryptopp (openSUSE-SU-2021:3301-1)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# openSUSE Security Update openSUSE-SU-2021:3301-1. The text itself
# is copyright (C) SUSE.
##

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

if (description)
{
  script_id(153909);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/10/07");

  script_cve_id("CVE-2016-9939");

  script_name(english:"openSUSE 15 Security Update : libcryptopp (openSUSE-SU-2021:3301-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SUSE15 host has packages installed that are affected by a vulnerability as referenced in the
openSUSE-SU-2021:3301-1 advisory.

  - Crypto++ (aka cryptopp and libcrypto++) 5.6.4 contained a bug in its ASN.1 BER decoding routine. The
    library will allocate a memory block based on the length field of the ASN.1 object. If there is not enough
    content octets in the ASN.1 object, then the function will fail and the memory block will be zeroed even
    if its unused. There is a noticeable delay during the wipe for a large allocation. (CVE-2016-9939)

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://bugzilla.suse.com/1015243");
  # https://lists.opensuse.org/archives/list/[email protected]/thread/OT7AMKZYZG3NMSSJK4GVQCGFPLIGSKD5/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c77db7cb");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2016-9939");
  script_set_attribute(attribute:"solution", value:
"Update the affected libcryptopp-devel, libcryptopp5_6_5 and / or libcryptopp5_6_5-32bit packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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-2016-9939");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/12/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/10/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/10/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libcryptopp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libcryptopp5_6_5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libcryptopp5_6_5-32bit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.3");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item('Host/SuSE/release');
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, 'openSUSE');
var os_ver = pregmatch(pattern: "^SUSE([\d.]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'openSUSE');
os_ver = os_ver[1];
if (release !~ "^(SUSE15\.3)$") audit(AUDIT_OS_RELEASE_NOT, 'openSUSE', '15.3', release);
if (!get_kb_item("Host/SuSE/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) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'openSUSE ' + os_ver, cpu);

var pkgs = [
    {'reference':'libcryptopp-devel-5.6.5-1.6.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libcryptopp5_6_5-32bit-5.6.5-1.6.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libcryptopp5_6_5-5.6.5-1.6.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var reference = NULL;
  var release = NULL;
  var cpu = NULL;
  var rpm_spec_vers_cmp = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) release = package_array['release'];
  if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && release) {
    if (rpm_check(release:release, cpu:cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) 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, 'libcryptopp-devel / libcryptopp5_6_5 / libcryptopp5_6_5-32bit');
}