RHEL 8 : gjs (Unpatched Vulnerability)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory gjs. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(202215);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/07/11");

  script_cve_id("CVE-2021-4231", "CVE-2022-29167", "CVE-2022-37603");

  script_name(english:"RHEL 8 : gjs (Unpatched Vulnerability)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat 8 host is affected by multiple vulnerabilities that will not be patched.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has one or more packages installed that are affected by multiple
vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - angular: XSS vulnerability (CVE-2021-4231)

  - Hawk is an HTTP authentication scheme providing mechanisms for making authenticated HTTP requests with
    partial cryptographic verification of the request and response, covering the HTTP method, request URI,
    host, and optionally the request payload. Hawk used a regular expression to parse `Host` HTTP header
    (`Hawk.utils.parseHost()`), which was subject to regular expression DoS attack - meaning each added
    character in the attacker's input increases the computation time exponentially. `parseHost()` was patched
    in `9.0.1` to use built-in `URL` class to parse hostname instead. `Hawk.authenticate()` accepts `options`
    argument. If that contains `host` and `port`, those would be used instead of a call to
    `utils.parseHost()`. (CVE-2022-29167)

  - A Regular expression denial of service (ReDoS) flaw was found in Function interpolateName in
    interpolateName.js in webpack loader-utils 2.0.0 via the url variable in interpolateName.js.
    (CVE-2022-37603)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package
is installed.");
  script_set_attribute(attribute:"solution", value:
"The vendor has acknowledged the vulnerabilities but no solution has been provided. Refer to the vendor for remediation
guidance.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:N/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:L/PR:L/UI:R/S:C/C:L/I:L/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-2021-4231");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/05/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/07/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:389-ds-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet3.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:firefox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:mozjs60");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:pcs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:theia-rhel8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:thunderbird");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Red Hat 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", "redhat_repos.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm.inc');
include('rhel.inc');

if (!get_kb_item("global_settings/vendor_unpatched"))
exit(0, "Unpatched Vulnerabilities Detection not active.");

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.x', 'Red Hat ' + 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$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var appstreams = {
  '389-ds:1.4': [
    {
      'pkgs': [
        {'reference':'389-ds-base', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'389-ds-base', 'cves':['CVE-2022-37603']},
        {'reference':'mozjs60', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'mozjs60', 'cves':['CVE-2022-37603']},
        {'reference':'pcs', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'pcs', 'cves':['CVE-2022-37603']},
        {'reference':'theia-rhel8', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'theia-rhel8', 'cves':['CVE-2022-37603']}
      ]
    }
  ],
  'firefox:flatpak': [
    {
      'pkgs': [
        {'reference':'dotnet3.1', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'dotnet3.1', 'cves':['CVE-2021-4231']},
        {'reference':'firefox', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'unpatched_pkg':'firefox', 'cves':['CVE-2021-4231', 'CVE-2022-29167']},
        {'reference':'mozjs60', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'mozjs60', 'cves':['CVE-2021-4231']},
        {'reference':'thunderbird', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'unpatched_pkg':'thunderbird', 'cves':['CVE-2022-29167']}
      ]
    }
  ],
  'thunderbird:flatpak': [
    {
      'pkgs': [
        {'reference':'dotnet3.1', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'dotnet3.1', 'cves':['CVE-2021-4231']},
        {'reference':'firefox', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'unpatched_pkg':'firefox', 'cves':['CVE-2021-4231', 'CVE-2022-29167']},
        {'reference':'mozjs60', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'mozjs60', 'cves':['CVE-2021-4231']},
        {'reference':'thunderbird', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'unpatched_pkg':'thunderbird', 'cves':['CVE-2022-29167']}
      ]
    }
  ]
};


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 module_array ( appstreams[module] ) {
      var repo_relative_urls = NULL;
      var enterprise_linux_flag = rhel_repo_urls_has_content_dist_rhel(repo_urls:repo_relative_urls);
      foreach var package_array ( module_array['pkgs'] ) {
        var unpatched_pkg = NULL;
        var _release = NULL;
        var sp = NULL;
        var el_string = NULL;
        var rpm_spec_vers_cmp = NULL;
        var exists_check = NULL;
        var cves = NULL;
        if (!empty_or_null(package_array['unpatched_pkg'])) unpatched_pkg = package_array['unpatched_pkg'];
        if (!empty_or_null(package_array['release'])) _release = 'RHEL' + package_array['release'];
        if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
        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['exists_check'])) exists_check = package_array['exists_check'];
        if (!empty_or_null(package_array['cves'])) cves = package_array['cves'];
        if (unpatched_pkg &&
            _release &&
            (!exists_check || rpm_exists(release:_release, rpm:exists_check)) &&
            unpatched_package_exists(release:_release, package:unpatched_pkg, cves: cves)) flag++;
      }
    }
  }
}

if (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module 389-ds:1.4 / firefox:flatpak / thunderbird:flatpak');

if (flag)
{
  var extra = NULL;
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      extra      : unpatched_packages_report()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, '389-ds-base / dotnet3.1 / firefox / mozjs60 / pcs / theia-rhel8 / etc');
}