Oracle Linux 8 : ruby:2.5 (ELSA-2022-0672)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2022-0672.
##

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

if (description)
{
  script_id(158467);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/07");

  script_cve_id("CVE-2021-31799", "CVE-2021-31810", "CVE-2021-32066");

  script_name(english:"Oracle Linux 8 : ruby:2.5 (ELSA-2022-0672)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2022-0672 advisory.

  - In RDoc 3.11 through 6.x before 6.3.1, as distributed with Ruby through 3.0.1, it is possible to execute
    arbitrary code via | and tags in a filename. (CVE-2021-31799)

  - An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does
    not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-
    middle attackers to bypass the TLS protections by leveraging a network position between the client and the
    registry to block the StartTLS command, aka a StartTLS stripping attack. (CVE-2021-32066)

  - An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP
    server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port.
    This potentially makes curl extract information about services that are otherwise private and not
    disclosed (e.g., the attacker can conduct port scans and service banner extractions). (CVE-2021-31810)

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://linux.oracle.com/errata/ELSA-2022-0672.html");
  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:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:H/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-2021-32066");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/05/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/02/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/03/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ruby");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ruby-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ruby-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ruby-irb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ruby-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-abrt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-abrt-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-bigdecimal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-bson");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-bson-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-bundler");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-bundler-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-did_you_mean");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-io-console");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-minitest");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-mongo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-mongo-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-mysql2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-mysql2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-net-telnet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-pg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-pg-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-power_assert");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-psych");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-rake");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-rdoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-test-unit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygem-xmlrpc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygems");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rubygems-devel");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


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

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item('Host/OracleLinux')) audit(AUDIT_OS_NOT, 'Oracle Linux');
var release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
var os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 8', 'Oracle Linux ' + 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$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

var module_ver = get_kb_item('Host/RedHat/appstream/ruby');
if (isnull(module_ver)) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module ruby:2.5');
if ('2.5' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module ruby:' + module_ver);

var appstreams = {
    'ruby:2.5': [
      {'reference':'ruby-2.5.9-109.module+el8.5.0+20502+13af163c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-2.5.9-109.module+el8.5.0+20502+13af163c', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-2.5.9-109.module+el8.5.0+20502+13af163c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-devel-2.5.9-109.module+el8.5.0+20502+13af163c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-devel-2.5.9-109.module+el8.5.0+20502+13af163c', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-devel-2.5.9-109.module+el8.5.0+20502+13af163c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-doc-2.5.9-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-irb-2.5.9-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-libs-2.5.9-109.module+el8.5.0+20502+13af163c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-libs-2.5.9-109.module+el8.5.0+20502+13af163c', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-libs-2.5.9-109.module+el8.5.0+20502+13af163c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-abrt-0.3.0-4.module+el8.3.0+7756+e45777e9', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-abrt-doc-0.3.0-4.module+el8.3.0+7756+e45777e9', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bigdecimal-1.3.4-109.module+el8.5.0+20502+13af163c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bigdecimal-1.3.4-109.module+el8.5.0+20502+13af163c', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bigdecimal-1.3.4-109.module+el8.5.0+20502+13af163c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bson-4.3.0-2.module+el8.3.0+7756+e45777e9', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bson-4.3.0-2.module+el8.3.0+7756+e45777e9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bson-doc-4.3.0-2.module+el8.3.0+7756+e45777e9', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bundler-1.16.1-4.module+el8.5.0+20497+d0a7b862', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bundler-doc-1.16.1-4.module+el8.5.0+20497+d0a7b862', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-did_you_mean-1.2.0-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-io-console-0.4.6-109.module+el8.5.0+20502+13af163c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-io-console-0.4.6-109.module+el8.5.0+20502+13af163c', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-io-console-0.4.6-109.module+el8.5.0+20502+13af163c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-json-2.1.0-109.module+el8.5.0+20502+13af163c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-json-2.1.0-109.module+el8.5.0+20502+13af163c', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-json-2.1.0-109.module+el8.5.0+20502+13af163c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-minitest-5.10.3-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mongo-2.5.1-2.module+el8.3.0+7756+e45777e9', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mongo-doc-2.5.1-2.module+el8.3.0+7756+e45777e9', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mysql2-0.4.10-4.module+el8.3.0+7756+e45777e9', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mysql2-0.4.10-4.module+el8.3.0+7756+e45777e9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mysql2-doc-0.4.10-4.module+el8.3.0+7756+e45777e9', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-net-telnet-0.1.1-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-openssl-2.1.2-109.module+el8.5.0+20502+13af163c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-openssl-2.1.2-109.module+el8.5.0+20502+13af163c', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-openssl-2.1.2-109.module+el8.5.0+20502+13af163c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-pg-1.0.0-2.module+el8.3.0+7756+e45777e9', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-pg-1.0.0-2.module+el8.3.0+7756+e45777e9', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-pg-doc-1.0.0-2.module+el8.3.0+7756+e45777e9', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-power_assert-1.1.1-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-psych-3.0.2-109.module+el8.5.0+20502+13af163c', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-psych-3.0.2-109.module+el8.5.0+20502+13af163c', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-psych-3.0.2-109.module+el8.5.0+20502+13af163c', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-rake-12.3.3-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-rdoc-6.0.1.1-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-test-unit-3.2.7-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-xmlrpc-0.3.0-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygems-2.7.6.3-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygems-devel-2.7.6.3-109.module+el8.5.0+20502+13af163c', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
    ]
};

var flag = 0;
var appstreams_found = 0;
foreach var module (keys(appstreams)) {
  var appstream = NULL;
  var appstream_name = NULL;
  var appstream_version = NULL;
  var appstream_split = split(module, sep:':', keep:FALSE);
  if (!empty_or_null(appstream_split)) {
    appstream_name = appstream_split[0];
    appstream_version = appstream_split[1];
    if (!empty_or_null(appstream_name)) appstream = get_one_kb_item('Host/RedHat/appstream/' + appstream_name);
  }
  if (!empty_or_null(appstream) && appstream_version == appstream || appstream_name == 'all') {
    appstreams_found++;
    foreach var package_array ( appstreams[module] ) {
      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;
      if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
      if (!empty_or_null(package_array['release'])) release = 'EL' + package_array['release'];
      if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
      if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
      if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
      if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
      if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
      if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
      if (reference && release) {
        if (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)) flag++;
      }
    }
  }
}

if (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module ruby:2.5');

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, 'ruby / ruby-devel / ruby-doc / etc');
}