openSUSE 15 Security Update : bouncycastle (openSUSE-SU-2021:0940-1)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# openSUSE Security Update openSUSE-SU-2021:0940-1. The text itself
# is copyright (C) SUSE.
##

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

if (description)
{
  script_id(151199);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/07/01");

  script_cve_id("CVE-2020-15522");

  script_name(english:"openSUSE 15 Security Update : bouncycastle (openSUSE-SU-2021:0940-1)");

  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-2021:0940-1 advisory.

  - Bouncy Castle BC Java before 1.66, BC C# .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA
    before 1.0.1.1 have a timing issue within the EC math library that can expose information about the
    private key when an attacker is able to observe timing information for the generation of multiple
    deterministic ECDSA signatures. (CVE-2020-15522)

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/1186328");
  # https://lists.opensuse.org/archives/list/[email protected]/thread/WSUJOEQHX6WIC7O7EQMIAET7L3ZTQKGM/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c1a444d6");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-15522");
  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:N/A:N");
  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:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-15522");

  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:"2021/05/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/06/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/07/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:bouncycastle");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:bouncycastle-javadoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:bouncycastle-mail");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:bouncycastle-pg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:bouncycastle-pkix");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:bouncycastle-tls");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.2");
  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);
release = get_kb_item('Host/SuSE/release');
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, 'openSUSE');
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\.2)$") audit(AUDIT_OS_RELEASE_NOT, 'openSUSE', '15.2', release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

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);

pkgs = [
    {'reference':'bouncycastle-1.64-lp152.2.3.1', 'release':'SUSE15.2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'bouncycastle-javadoc-1.64-lp152.2.3.1', 'release':'SUSE15.2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'bouncycastle-mail-1.64-lp152.2.3.1', 'release':'SUSE15.2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'bouncycastle-pg-1.64-lp152.2.3.1', 'release':'SUSE15.2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'bouncycastle-pkix-1.64-lp152.2.3.1', 'release':'SUSE15.2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'bouncycastle-tls-1.64-lp152.2.3.1', 'release':'SUSE15.2', 'rpm_spec_vers_cmp':TRUE}
];

flag = 0;
foreach package_array ( pkgs ) {
  reference = NULL;
  release = NULL;
  cpu = NULL;
  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
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'bouncycastle / bouncycastle-javadoc / bouncycastle-mail / etc');
}