NewStart CGSL MAIN 6.06 (SP) : ruby Multiple Vulnerabilities (NS-SA-2026-0023)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2026-0023. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(301218);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/06");

  script_cve_id("CVE-2008-1891", "CVE-2008-5189", "CVE-2012-5371");

  script_name(english:"NewStart CGSL MAIN 6.06 (SP) : ruby Multiple Vulnerabilities (NS-SA-2026-0023)");

  script_set_attribute(attribute:"synopsis", value:
"The remote NewStart CGSL host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version MAIN 6.06 (SP), has ruby packages installed that are affected by multiple
vulnerabilities:

  - CRLF injection vulnerability in Ruby on Rails before 2.0.5 allows remote attackers to inject arbitrary
    HTTP headers and conduct HTTP response splitting attacks via a crafted URL to the redirect_to function.
    (CVE-2008-5189)

  - Directory traversal vulnerability in WEBrick in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6
    before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2, when using NTFS or FAT filesystems,
    allows remote attackers to read arbitrary CGI files via a trailing (1) + (plus), (2) %2b (encoded plus),
    (3) . (dot), (4) %2e (encoded dot), or (5) %20 (encoded space) character in the URI, possibly related to
    the WEBrick::HTTPServlet::FileHandler and WEBrick::HTTPServer.new functionality and the :DocumentRoot
    option. (CVE-2008-1891)

  - Ruby (aka CRuby) 1.9 before 1.9.3-p327 and 2.0 before r37575 computes hash values without properly
    restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers
    to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash
    table, as demonstrated by a universal multicollision attack against a variant of the MurmurHash2
    algorithm, a different vulnerability than CVE-2011-4815. (CVE-2012-5371)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/notice/NS-SA-2026-0023");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2008-1891");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2008-5189");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2012-5371");
  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:L/Au:N/C:N/I:P/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:L/PR:N/UI:N/S:U/C:N/I:L/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-2008-5189");

  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:"2008/04/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/03/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/03/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:ruby");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:ruby-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rubygem-bigdecimal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rubygem-io-console");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rubygem-irb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rubygem-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rubygem-openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rubygem-psych");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rubygem-rdoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rubygems");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:6");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");

  exit(0);
}

include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

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

if (os_release !~ "CGSL\sMAIN\s6\.06\s\(SP\)")
  audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 6.06 (SP)');

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

var flag = 0;

var pkgs = {
  'CGSL MAIN 6.06 (SP)': [
    'ruby-2.6.10-109.module+zncgsl6.6.0+10811+c4e2cb16',
    'ruby-libs-2.6.10-109.module+zncgsl6.6.0+10811+c4e2cb16',
    'rubygem-bigdecimal-1.4.1-109.module+zncgsl6.6.0+10811+c4e2cb16',
    'rubygem-io-console-0.4.7-109.module+zncgsl6.6.0+10811+c4e2cb16',
    'rubygem-irb-1.0.0-109.module+zncgsl6.6.0+10811+c4e2cb16',
    'rubygem-json-2.1.0-109.module+zncgsl6.6.0+10811+c4e2cb16',
    'rubygem-openssl-2.1.2-109.module+zncgsl6.6.0+10811+c4e2cb16',
    'rubygem-psych-3.1.0-109.module+zncgsl6.6.0+10811+c4e2cb16',
    'rubygem-rdoc-6.1.2.1-109.module+zncgsl6.6.0+10811+c4e2cb16',
    'rubygems-3.0.3.1-109.module+zncgsl6.6.0+10811+c4e2cb16'
  ]
};
var pkg_list = pkgs[os_release];
var pkg;
foreach (pkg in pkg_list)
  if (rpm_check(reference:pkg, release:'ZTE ' + os_release, rpm_spec_vers_cmp:TRUE)) 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, 'ruby');
}