NewStart CGSL CORE 5.04 / MAIN 5.04 : ruby Multiple Vulnerabilities (NS-SA-2019-0080)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2019-0080. The text
# itself is copyright (C) ZTE, Inc.

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

if (description)
{
  script_id(127292);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id(
    "CVE-2019-8322",
    "CVE-2019-8323",
    "CVE-2019-8324",
    "CVE-2019-8325"
  );

  script_name(english:"NewStart CGSL CORE 5.04 / MAIN 5.04 : ruby Multiple Vulnerabilities (NS-SA-2019-0080)");

  script_set_attribute(attribute:"synopsis", value:
"The remote machine is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has ruby packages installed that are affected by
multiple vulnerabilities:

  - An issue was discovered in RubyGems 2.6 and later
    through 3.0.2. The gem owner command outputs the
    contents of the API response directly to stdout.
    Therefore, if the response is crafted, escape sequence
    injection may occur. (CVE-2019-8322)

  - An issue was discovered in RubyGems 2.6 and later
    through 3.0.2. Gem::GemcutterUtilities#with_response may
    output the API response to stdout as it is. Therefore,
    if the API side modifies the response, escape sequence
    injection may occur. (CVE-2019-8323)

  - An issue was discovered in RubyGems 2.6 and later
    through 3.0.2. A crafted gem with a multi-line name is
    not handled correctly. Therefore, an attacker could
    inject arbitrary code to the stub line of gemspec, which
    is eval-ed by code in ensure_loadable_spec during the
    preinstall check. (CVE-2019-8324)

  - An issue was discovered in RubyGems 2.6 and later
    through 3.0.2. Since Gem::CommandManager#run calls
    alert_error without escaping, escape sequence injection
    is possible. (There are many ways to cause an error.)
    (CVE-2019-8325)

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:"http://security.gd-linux.com/notice/NS-SA-2019-0080");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL ruby packages. Note that updated packages may not be available yet. Please contact ZTE for
more information.");
  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:R/S:U/C:H/I:H/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-2019-8324");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  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);

release = get_kb_item("Host/ZTE-CGSL/release");
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, "NewStart Carrier Grade Server Linux");

if (release !~ "CGSL CORE 5.04" &&
    release !~ "CGSL MAIN 5.04")
  audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.04 / NewStart CGSL MAIN 5.04');

if (!get_kb_item("Host/ZTE-CGSL/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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "NewStart Carrier Grade Server Linux", cpu);

flag = 0;

pkgs = {
  "CGSL CORE 5.04": [
    "ruby-2.0.0.648-35.el7_6",
    "ruby-debuginfo-2.0.0.648-35.el7_6",
    "ruby-devel-2.0.0.648-35.el7_6",
    "ruby-doc-2.0.0.648-35.el7_6",
    "ruby-irb-2.0.0.648-35.el7_6",
    "ruby-libs-2.0.0.648-35.el7_6",
    "ruby-tcltk-2.0.0.648-35.el7_6",
    "rubygem-bigdecimal-1.2.0-35.el7_6",
    "rubygem-io-console-0.4.2-35.el7_6",
    "rubygem-json-1.7.7-35.el7_6",
    "rubygem-minitest-4.3.2-35.el7_6",
    "rubygem-psych-2.0.0-35.el7_6",
    "rubygem-rake-0.9.6-35.el7_6",
    "rubygem-rdoc-4.0.0-35.el7_6",
    "rubygems-2.0.14.1-35.el7_6",
    "rubygems-devel-2.0.14.1-35.el7_6"
  ],
  "CGSL MAIN 5.04": [
    "ruby-2.0.0.648-35.el7_6",
    "ruby-debuginfo-2.0.0.648-35.el7_6",
    "ruby-devel-2.0.0.648-35.el7_6",
    "ruby-doc-2.0.0.648-35.el7_6",
    "ruby-irb-2.0.0.648-35.el7_6",
    "ruby-libs-2.0.0.648-35.el7_6",
    "ruby-tcltk-2.0.0.648-35.el7_6",
    "rubygem-bigdecimal-1.2.0-35.el7_6",
    "rubygem-io-console-0.4.2-35.el7_6",
    "rubygem-json-1.7.7-35.el7_6",
    "rubygem-minitest-4.3.2-35.el7_6",
    "rubygem-psych-2.0.0-35.el7_6",
    "rubygem-rake-0.9.6-35.el7_6",
    "rubygem-rdoc-4.0.0-35.el7_6",
    "rubygems-2.0.14.1-35.el7_6",
    "rubygems-devel-2.0.14.1-35.el7_6"
  ]
};
pkg_list = pkgs[release];

foreach (pkg in pkg_list)
  if (rpm_check(release:"ZTE " + release, reference:pkg)) 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, "ruby");
}