Rockwell FactoryTalk Activation Manager <= 5.02 Privilege Escalation (SD1799)

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

include('compat.inc');

if (description)
{
  script_id(342359);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/03");

  script_cve_id("CVE-2026-16675");
  script_xref(name:"ICSA", value:"26-244-04");

  script_name(english:"Rockwell FactoryTalk Activation Manager <= 5.02 Privilege Escalation (SD1799)");

  script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote Windows host is affected by a privilege escalation vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Rockwell FactoryTalk Activation Manager installed on the remote Windows host is 5.02 or prior. It is,
therefore, affected by a privilege escalation vulnerability. The security issue stems from custom actions in the
installer that spawn visible console windows running with SYSTEM privileges during installation or repair operations.
An authenticated attacker with Windows credentials could hijack these console windows to obtain a SYSTEM-level command
prompt, allowing full access to all files, processes, and system resources.

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://www.cisa.gov/news-events/ics-advisories/icsa-26-244-04");
  # https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1799.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4f2b08f6");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Rockwell FactoryTalk Activation Manager version 5.03 or later.");
  script_set_attribute(attribute:"agent", value:"windows");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:N/UI:N/S:U/C:H/I:H/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:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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-2026-16675");

  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:"2026/09/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:rockwellautomation:factorytalk_activation");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SCADA");

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

  script_dependencies("rockwell_factorytalk_activation_manager_win_installed.nbin");
  script_require_keys("installed_sw/Rockwell FactoryTalk Activation Manager");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'Rockwell FactoryTalk Activation Manager', 'type': 'app'},
      'requires': [
        {'scope': 'target', 'match': {'os': 'windows'}}
      ],
      'check_algorithm': 'default',
      'constraints': [
        {'fixed_version': '5.03'}
      ]
    }
  ]
};

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