TencentOS Server 3: ruby:2.5 (TSSA-2023:0312)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Tencent Linux Security Advisory TSSA-2023:0312.
##

include('compat.inc');

if (description)
{
  script_id(276331);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/12/05");

  script_cve_id(
    "CVE-2021-33621",
    "CVE-2022-28739",
    "CVE-2023-28755",
    "CVE-2023-28756"
  );

  script_name(english:"TencentOS Server 3: ruby:2.5 (TSSA-2023:0312)");

  script_set_attribute(attribute:"synopsis", value:
"The remote TencentOS Server 3 host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is,
therefore, affected by multiple vulnerabilities as referenced in the TSSA-2023:0312 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

      CVE-2021-33621:
      The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response
    splitting. This is relevant to applications that use untrusted user input either to generate an HTTP
    response or to create a CGI::Cookie object.

      CVE-2022-28739:
      There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x
    before 3.1.2. It occurs in String-to-Float conversion, including Kernel#Float and String#to_f.

      CVE-2023-28755:
      A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. The URI parser
    mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing
    strings to URI objects. The fixed versions are 0.12.1, 0.11.1, 0.10.2 and 0.10.0.1.

      CVE-2023-28756:
      A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser
    mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing
    strings to Time objects. The fixed versions are 0.1.1 and 0.2.2.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

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://mirrors.tencent.com/tlinux/errata/tssa-20230312.xml");
  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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-28739");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-33621");

  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:"2022/04/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/01/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/11/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:tencent:tencentos_server:3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:ruby");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:rubygem-abrt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:rubygem-bson");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:rubygem-bundler");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:rubygem-mongo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:rubygem-mysql2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:rubygem-pg");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/etc/os-release", "Host/TencentOS/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_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'TencentOS' >!< os_product) audit(AUDIT_OS_NOT, 'TencentOS');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'TencentOS');
if (! preg(pattern:"^3([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'TencentOS 3.x', 'TencentOS ' + os_version);

if (!get_kb_item('Host/TencentOS/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, 'TencentOS', cpu);

var constraints = [
  {
    'release': '3',
    'pkgs': [
      {'reference':'ruby-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-debuginfo-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-debuginfo-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-debugsource-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-debugsource-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-devel-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-devel-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-doc-2.5.9-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-irb-2.5.9-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-libs-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-libs-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-libs-debuginfo-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-libs-debuginfo-2.5.9-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-abrt-0.3.0-4.module+el8.6.0+276+2c85c46b', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-abrt-doc-0.3.0-4.module+el8.6.0+276+2c85c46b', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bigdecimal-1.3.4-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bigdecimal-1.3.4-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bigdecimal-debuginfo-1.3.4-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bigdecimal-debuginfo-1.3.4-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bson-4.3.0-2.module+el8.6.0+276+2c85c46b', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bson-4.3.0-2.module+el8.6.0+276+2c85c46b', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bson-debuginfo-4.3.0-2.module+el8.6.0+276+2c85c46b', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bson-debuginfo-4.3.0-2.module+el8.6.0+276+2c85c46b', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bson-debugsource-4.3.0-2.module+el8.6.0+276+2c85c46b', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bson-debugsource-4.3.0-2.module+el8.6.0+276+2c85c46b', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bson-doc-4.3.0-2.module+el8.6.0+276+2c85c46b', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bundler-1.16.1-4.module+el8.6.0+276+2c85c46b', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bundler-doc-1.16.1-4.module+el8.6.0+276+2c85c46b', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-did_you_mean-1.2.0-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-io-console-0.4.6-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-io-console-0.4.6-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-io-console-debuginfo-0.4.6-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-io-console-debuginfo-0.4.6-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-json-2.1.0-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-json-2.1.0-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-json-debuginfo-2.1.0-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-json-debuginfo-2.1.0-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-minitest-5.10.3-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mongo-2.5.1-2.module+el8.6.0+276+2c85c46b', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mongo-doc-2.5.1-2.module+el8.6.0+276+2c85c46b', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mysql2-0.4.10-4.module+el8.6.0+276+2c85c46b', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mysql2-0.4.10-4.module+el8.6.0+276+2c85c46b', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mysql2-debuginfo-0.4.10-4.module+el8.6.0+276+2c85c46b', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mysql2-debuginfo-0.4.10-4.module+el8.6.0+276+2c85c46b', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mysql2-debugsource-0.4.10-4.module+el8.6.0+276+2c85c46b', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mysql2-debugsource-0.4.10-4.module+el8.6.0+276+2c85c46b', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-mysql2-doc-0.4.10-4.module+el8.6.0+276+2c85c46b', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-net-telnet-0.1.1-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-openssl-2.1.2-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-openssl-2.1.2-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-openssl-debuginfo-2.1.2-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-openssl-debuginfo-2.1.2-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-pg-1.0.0-3.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-pg-1.0.0-3.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-pg-debuginfo-1.0.0-3.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-pg-debuginfo-1.0.0-3.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-pg-debugsource-1.0.0-3.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-pg-debugsource-1.0.0-3.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-pg-doc-1.0.0-3.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-power_assert-1.1.1-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-psych-3.0.2-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-psych-3.0.2-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-psych-debuginfo-3.0.2-111.module+el8.8.0+556+0441a7bb', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-psych-debuginfo-3.0.2-111.module+el8.8.0+556+0441a7bb', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-rake-12.3.3-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-rdoc-6.0.1.1-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-test-unit-3.2.7-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-xmlrpc-0.3.0-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygems-2.7.6.3-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygems-devel-2.7.6.3-111.module+el8.8.0+556+0441a7bb', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) 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 / ruby-debuginfo / ruby-debugsource / etc');
}