Wireshark 2.6.x < 2.6.16 A Vulnerability

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

include('compat.inc');

if (description)
{
  script_id(311472);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/02");

  script_cve_id("CVE-2020-11647");
  script_xref(name:"IAVB", value:"2020-B-0021-S");

  script_name(english:"Wireshark 2.6.x < 2.6.16 A Vulnerability");

  script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote Windows host is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Wireshark installed on the remote Windows host is prior to 2.6.16. It is, therefore, affected by a
vulnerability as referenced in the wireshark-2.6.16 advisory.

  - In Wireshark 3.2.0 to 3.2.2, 3.0.0 to 3.0.9, and 2.6.0 to 2.6.15, the BACapp dissector could crash. This
    was addressed in epan/dissectors/packet-bacapp.c by limiting the amount of recursion. (CVE-2020-11647)

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.wireshark.org/docs/relnotes/wireshark-2.6.16.html");
  script_set_attribute(attribute:"see_also", value:"https://gitlab.com/wireshark/wireshark/-/issues/16474");
  script_set_attribute(attribute:"see_also", value:"https://www.wireshark.org/security/wnpa-sec-2020-07");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Wireshark version 2.6.16 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-11647");

  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:"2020/04/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/05/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:wireshark:wireshark");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

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

  script_dependencies("wireshark_installed.nasl");
  script_require_keys("installed_sw/Wireshark", "SMB/Registry/Enumerated");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  "metadata": {
    "spec_version": "1.0"
  },
  "requires": [
    {
      "scope": "target",
      "match": {
        "os": "windows"
      }
    }
  ],
  "checks": [
    {
      "product": {
        "name": "Wireshark",
        "type": "app"
      },
      "check_algorithm": "default",
      "constraints": [
        {
          "min_version": "2.6.0",
          "fixed_version": "2.6.16"
        }
      ]
    }
  ]
};

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