Tenable Sensor Proxy < 1.4.2 Code Injection (TNS-2026-21)

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

include('compat.inc');

if (description)
{
  script_id(333044);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/07");

  script_cve_id("CVE-2026-18667");

  script_name(english:"Tenable Sensor Proxy < 1.4.2 Code Injection (TNS-2026-21)");

  script_set_attribute(attribute:"synopsis", value:
"An instance of Sensor Proxy installed on the remote system is affected by code injection vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the Tenable Sensor Proxy running on the remote host is prior to 1.4.2. It is,
therefore, affected by code injection vulnerability as referenced in the TNS-2026-21 advisory.

  - A vulnerability in Tenable Sensor Proxy allows a remote attacker to execute code with elevated privileges 
    by inducing an operator to connect the sensor to an attacker-controlled host. (CVE-2026-18667)

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.tenable.com/security/TNS-2026-21");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Tenable Sensor Proxy 1.4.2 or later.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:R/S:C/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:N/AC:L/AT:N/PR:N/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-2026-18667");

  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:"2024/08/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:tenable:sensorproxy");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

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

  script_dependencies("sensorproxy_installed.nbin");
  script_require_ports("installed_sw/Tenable Sensor Proxy");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  "metadata": {"spec_version": "1.0"},
  "checks": [
    {
      "product": {"name": "Tenable Sensor Proxy", "type": "app"},
      "check_algorithm": "default",
      "constraints": [
        {
          "fixed_version": "1.4.2"
        }
      ]
    }
  ]
};

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