Rockwell Automation Micro850/870 Dependency on Vulnerable Third-Party Component (CVE-2025-13823)

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

include('compat.inc');

if (description)
{
  script_id(505885);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/30");

  script_cve_id("CVE-2025-13823");
  script_xref(name:"ICSA", value:"25-352-07");

  script_name(english:"Rockwell Automation Micro850/870 Dependency on Vulnerable Third-Party Component (CVE-2025-13823)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A security issue was found in the IPv6 stack in the Micro850 and
Micro870 controllers. This issue occurs when the controllers receive
multiple malformed packets, causing the controller to enter a
recoverable fault (fault code 0xFE60). To recover the controller, the
fault must be cleared.

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.SD1766.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?42ee1e70");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-25-352-07");
  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.

Rockwell Automation recommends users of Micro850/870 (2080-L50E/2080-L70E) update to V23.012 or later.

For users unable to upgrade to a corrected version, Rockwell Automation advises disabling IPv6 functionality if it is
not required.");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  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:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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-2025-13823");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(1395);

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/12/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/12/09");
  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:micro850_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:rockwellautomation:micro870_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:micro850_firmware" :
        {"versionEndExcluding" : "23.012", "versionStartIncluding" : "23.011", "family" : "Micro850"},
    "cpe:/o:rockwellautomation:micro870_firmware" :
        {"versionEndExcluding" : "23.012", "versionStartIncluding" : "23.011", "family" : "Micro870"}
};

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