Rockwell Automation CompactLogix Exposure of Sensitive System Information to an Unauthorized Control Sphere (CVE-2026-9307)

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

include('compat.inc');

if (description)
{
  script_id(505886);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/30");

  script_cve_id("CVE-2026-9307");
  script_xref(name:"ICSA", value:"26-167-04");

  script_name(english:"Rockwell Automation CompactLogix Exposure of Sensitive System Information to an Unauthorized Control Sphere (CVE-2026-9307)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A sensitive information disclosure security issue exists within the
affected CompactLogix 5370 controllers. The controller's web server
exposes CIP Connection IDs on the diagnostics webpage, which are
accessible to any unauthenticated user on the network. This
information can be leveraged by an attacker to construct malicious
packets, leading to a denial-of-service condition.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1776.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?74a39431");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-26-167-04");
  script_set_attribute(attribute:"solution", value:
"The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original
can be found at CISA.gov.");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/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:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-9307");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(497);

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/06/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/29");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:rockwellautomation:compactlogix_5370_l1_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:rockwellautomation:compactlogix_5370_l2_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:rockwellautomation:compactlogix_5370_l3_firmware");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

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

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/Rockwell");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Rockwell');

var asset = tenable_ot::assets::get(vendor:'Rockwell');

var vuln_cpes = {
    "cpe:/o:rockwellautomation:compactlogix_5370_l1_firmware" :
        {"versionEndExcluding" : "38.011", "family" : "CompactLogix5370"},
    "cpe:/o:rockwellautomation:compactlogix_5370_l2_firmware" :
        {"versionEndExcluding" : "38.011", "family" : "CompactLogix5370"},
    "cpe:/o:rockwellautomation:compactlogix_5370_l3_firmware" :
        {"versionEndExcluding" : "38.011", "family" : "CompactLogix5370"}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_WARNING);