Apache ActiveMQ < 5.19.3 / 5.19.4, 6.x < 6.2.2 / 6.2.3 Classpath Path Traversal

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(305954);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/08");

  script_cve_id("CVE-2026-33227");
  script_xref(name:"IAVB", value:"2026-B-0088-S");

  script_name(english:"Apache ActiveMQ < 5.19.3 / 5.19.4, 6.x < 6.2.2 / 6.2.3 Classpath Path Traversal");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is running a web application that is affected by a path traversal vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Apache ActiveMQ running on the remote host is prior to 5.19.3 / 5.19.4 or 6.x prior to 6.2.2 / 6.2.3.
It is, therefore, affected by an improper validation and restriction of classpath path name vulnerability:

  - An authenticated user could exploit path concatenation to traverse the classpath in two specific contexts: when
    creating a Stomp consumer and when browsing messages via the Web console. This vulnerability enables classpath path
    resource loading that could potentially be combined with other attacks for exploitation. (CVE-2026-33227)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://activemq.apache.org/security-advisories.data/CVE-2026-33227-announcement.txt
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?911f5798");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache ActiveMQ version 5.19.3 / 5.19.4, 6.2.2 / 6.2.3, or later.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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-2026-33227");

  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:"2026/04/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/04/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/04/10");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apache:activemq");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("activemq_web_console_detect.nasl", "apache_activemq_nix_installed.nbin", "activemq_listen_port_detect.nbin");
  script_require_keys("installed_sw/Apache ActiveMQ");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'Apache ActiveMQ', 'type': 'app'},
      'check_algorithm': 'default',
      'requires': [{'scope': 'target', 'not_match': {'os': 'windows'}}],
      'constraints': [
        {'fixed_version': '5.19.3'},
        {'min_version':'6.0.0', 'fixed_version': '6.2.2'}
      ]
    },
    {
      'product': {'name': 'Apache ActiveMQ', 'type': 'app'},
      'check_algorithm': 'default',
      'requires': [{'scope': 'target', 'match': {'os': 'windows'}}],
      'constraints': [
        {'fixed_version': '5.19.4'},
        {'min_version':'6.0.0', 'fixed_version': '6.2.3'}
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_WARNING);
vdf::handle_check_and_report_errors(vdf_result:result);