Ubuntu 18.04 ESM / 20.04 ESM : Symfony vulnerabilities (USN-5290-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-5290-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##

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  script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/27");

  script_cve_id("CVE-2021-21424", "CVE-2021-41270");
  script_xref(name:"USN", value:"5290-1");

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  script_set_attribute(attribute:"synopsis", value:
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  script_set_attribute(attribute:"description", value:
"The remote Ubuntu 18.04 ESM / 20.04 ESM host has packages installed that are affected by multiple vulnerabilities as
referenced in the USN-5290-1 advisory.

    James Isaac and Mathias Brodala discovered that Symfony incorrectly handled switch users functionality. An
    attacker could possibly use this issue to enumerate users. (CVE-2021-21424)

    It was discovered that Symfony incorrectly handled certain specially crafted CSV files. An attacker could
    possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 20.04 ESM.
    (CVE-2021-41270)

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
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  script_set_attribute(attribute:"solution", value:
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include('debian_package.inc');

if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('18.04' >< os_release || '20.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 18.04 / 20.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);

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var ubuntu_pro_detected = get_kb_item('Host/Ubuntu/Pro/Services/esm-apps');
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var pro_caveat_needed = FALSE;

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    {'osver': '20.04', 'pkgname': 'php-symfony-http-client', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-http-foundation', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-http-kernel', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-inflector', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-intl', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-ldap', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-lock', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-mailchimp-mailer', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-mailer', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-mailgun-mailer', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-messenger', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-mime', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-monolog-bridge', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-options-resolver', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-phpunit-bridge', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-postmark-mailer', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-process', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-property-access', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-property-info', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-proxy-manager-bridge', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-routing', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-security', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-security-bundle', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-security-core', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-security-csrf', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-security-guard', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-security-http', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-sendgrid-mailer', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-serializer', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-stopwatch', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-templating', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-translation', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-twig-bridge', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-twig-bundle', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-validator', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-var-dumper', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-var-exporter', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-web-link', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-web-profiler-bundle', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-web-server-bundle', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-workflow', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE},
    {'osver': '20.04', 'pkgname': 'php-symfony-yaml', 'pkgver': '4.3.8+dfsg-1ubuntu1+esm1', 'ubuntu_pro': TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var osver = NULL;
  var pkgname = NULL;
  var pkgver = NULL;
  if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
  if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
  if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
  var pro_required = NULL;
  if (!empty_or_null(package_array['ubuntu_pro'])) pro_required = package_array['ubuntu_pro'];
  if (osver && pkgname && pkgver) {
    if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) {
        flag++;
        if (!ubuntu_pro_detected && !pro_caveat_needed) pro_caveat_needed = pro_required;
    }
  }
}

if (flag)
{
  var extra = '';
  if (pro_caveat_needed) {
    extra += 'NOTE: This vulnerability check contains fixes that apply to packages only \n';
    extra += 'available in Ubuntu ESM repositories. Access to these package security updates \n';
    extra += 'require an Ubuntu Pro subscription.\n\n';
  }
  extra += ubuntu_report_get();
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : extra
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'php-symfony / php-symfony-amazon-mailer / php-symfony-asset / etc');
}