Amazon Linux 2 : jetty (ALAS-2025-2855)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2025-2855.
##

include('compat.inc');

if (description)
{
  script_id(235888);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/05/13");

  script_cve_id("CVE-2021-34428");

  script_name(english:"Amazon Linux 2 : jetty (ALAS-2025-2855)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"It is, therefore, affected by a vulnerability as referenced in the ALAS2-2025-2855 advisory.

    For Eclipse Jetty versions <= 9.4.40, <= 10.0.2, <= 11.0.2, if an exception is thrown from the
    SessionListener#sessionDestroyed() method, then the session ID is not invalidated in the session ID
    manager. On deployments with clustered sessions and multiple contexts this can result in a session not
    being invalidated. This can result in an application used on a shared computer being left logged in.
    (CVE-2021-34428)

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/AL2/ALAS-2025-2855.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2021-34428.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update jetty' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/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:P/AC:L/PR:N/UI:N/S:U/C:L/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-2021-34428");

  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:"2021/06/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/05/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/05/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-annotations");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-ant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-continuation");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-deploy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-http");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-io");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-jaas");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-jaspi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-javadoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-jmx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-jndi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-jsp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-jspc-maven-plugin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-maven-plugin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-monitor");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-plus");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-project");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-proxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-rewrite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-runner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-security");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-servlet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-servlets");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-start");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-util");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-util-ajax");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-webapp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-websocket-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-websocket-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-websocket-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-websocket-parent");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-websocket-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-websocket-servlet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:jetty-xml");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Amazon Linux 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_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");

  exit(0);
}

include("rpm.inc");

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

var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var pkgs = [
    {'reference':'jetty-annotations-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-ant-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-client-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-continuation-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-deploy-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-http-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-io-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-jaas-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-jaspi-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-javadoc-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-jmx-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-jndi-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-jsp-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-jspc-maven-plugin-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-maven-plugin-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-monitor-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-plus-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-project-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-proxy-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-rewrite-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-runner-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-security-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-server-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-servlet-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-servlets-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-start-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-util-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-util-ajax-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-webapp-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-websocket-api-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-websocket-client-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-websocket-common-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-websocket-parent-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-websocket-server-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-websocket-servlet-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jetty-xml-9.0.3-8.amzn2.0.5', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  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;
  var exists_check = NULL;
  var cves = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 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 (!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 (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    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, cves:cves)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      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, "jetty-annotations / jetty-ant / jetty-client / etc");
}