Oracle Linux 8 : nodejs:20 (ELSA-2024-1687)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2024-1687.
##

include('compat.inc');

if (description)
{
  script_id(193028);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/08");

  script_cve_id(
    "CVE-2023-46809",
    "CVE-2024-21890",
    "CVE-2024-21891",
    "CVE-2024-21892",
    "CVE-2024-21896",
    "CVE-2024-22017",
    "CVE-2024-22019"
  );

  script_name(english:"Oracle Linux 8 : nodejs:20 (ELSA-2024-1687)");

  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-2024-1687 advisory.

  - On Linux, Node.js ignores certain environment variables if those may have been set by an unprivileged user
    while the process is running with elevated privileges with the only exception of CAP_NET_BIND_SERVICE. Due
    to a bug in the implementation of this exception, Node.js incorrectly applies this exception even when
    certain other capabilities have been set. This allows unprivileged users to inject code that inherits the
    process's elevated privileges. (CVE-2024-21892)

  - setuid() does not affect libuv's internal io_uring operations if initialized before the call to setuid().
    This allows the process to perform privileged operations despite presumably having dropped such privileges
    through a call to setuid(). This vulnerability affects all users using version greater or equal than
    Node.js 18.18.0, Node.js 20.4.0 and Node.js 21. (CVE-2024-22017)

  - The Node.js Permission Model does not clarify in the documentation that wildcards should be only used as
    the last character of a file path. For example: ``` --allow-fs-read=/home/node/.ssh/*.pub ``` will ignore
    `pub` and give access to everything after `.ssh/`. This misleading documentation affects all users using
    the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was
    issued, the permission model is an experimental feature of Node.js. (CVE-2024-21890)

  - A vulnerability in the privateDecrypt() API of the crypto library, allowed a covert timing side-channel
    during PKCS#1 v1.5 padding error handling. The vulnerability revealed significant timing differences in
    decryption for valid and invalid ciphertexts. This poses a serious threat as attackers could remotely
    exploit the vulnerability to decrypt captured RSA ciphertexts or forge signatures, especially in scenarios
    involving API endpoints processing Json Web Encryption messages. Impacts: Thank you, to hkario for
    reporting this vulnerability and thank you Michael Dawson for fixing it. (CVE-2023-46809)

  - A vulnerability in Node.js HTTP servers allows an attacker to send a specially crafted HTTP request with
    chunked encoding, leading to resource exhaustion and denial of service (DoS). The server reads an
    unbounded number of bytes from a single connection, exploiting the lack of limitations on chunk extension
    bytes. The issue can cause CPU and network bandwidth exhaustion, bypassing standard safeguards like
    timeouts and body size limits. (CVE-2024-22019)

  - Node.js depends on multiple built-in utility functions to normalize paths provided to node:fs functions,
    which can be overwitten with user-defined implementations leading to filesystem permission model bypass
    through path traversal attack. This vulnerability affects all users using the experimental permission
    model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model
    is an experimental feature of Node.js. (CVE-2024-21891)

  - The permission model protects itself against path traversal attacks by calling path.resolve() on any paths
    given by the user. If the path is to be treated as a Buffer, the implementation uses Buffer.from() to
    obtain a Buffer from the result of path.resolve(). By monkey-patching Buffer internals, namely,
    Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path
    traversal vulnerability. This vulnerability affects all users using the experimental permission model in
    Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an
    experimental feature of Node.js. (CVE-2024-21896)

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://linux.oracle.com/errata/ELSA-2024-1687.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/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-2024-21892");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2024-21896");

  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:"2024/02/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/04/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/04/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:8::appstream");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-full-i18n");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-nodemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-packaging");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nodejs-packaging-bundler");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:npm");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2024 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('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 os_release = get_kb_item("Host/RedHat/release");
if (isnull(os_release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
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/nodejs');
if (isnull(module_ver)) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module nodejs:20');
if ('20' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module nodejs:' + module_ver);

var appstreams = {
    'nodejs:20': [
      {'reference':'nodejs-20.11.1-1.module+el8.9.0+90250+089ba5e1', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'nodejs-devel-20.11.1-1.module+el8.9.0+90250+089ba5e1', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'nodejs-docs-20.11.1-1.module+el8.9.0+90250+089ba5e1', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'nodejs-full-i18n-20.11.1-1.module+el8.9.0+90250+089ba5e1', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'nodejs-nodemon-3.0.1-1.module+el8.9.0+90082+b6a613a6', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'nodejs-packaging-2021.06-4.module+el8.9.0+90082+b6a613a6', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'nodejs-packaging-bundler-2021.06-4.module+el8.9.0+90082+b6a613a6', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'npm-10.2.4-1.20.11.1.1.module+el8.9.0+90250+089ba5e1', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'nodejs-20.11.1-1.module+el8.9.0+90250+089ba5e1', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'nodejs-devel-20.11.1-1.module+el8.9.0+90250+089ba5e1', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'nodejs-full-i18n-20.11.1-1.module+el8.9.0+90250+089ba5e1', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'npm-10.2.4-1.20.11.1.1.module+el8.9.0+90250+089ba5e1', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}
    ]
};

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 nodejs:20');

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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, 'nodejs / nodejs-devel / nodejs-docs / etc');
}