D-Link DIR-825 R1 Device < 3.0.2 RCE (CVE-2020-29557)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(155305);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/04/25");

  script_cve_id("CVE-2020-29557");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/05/03");

  script_name(english:"D-Link DIR-825 R1 Device < 3.0.2 RCE (CVE-2020-29557)");

  script_set_attribute(attribute:"synopsis", value:
"The remote router is affected by a remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"A remote code execution vulnerability exists in D-Link DIR-825 R1 devices. An unauthenticated, remote attacker can
exploit this to bypass authentication and execute arbitrary commands. 

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.dlink.ru/ru/download2/5/19/2354/441/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to D-Link DIR-825 3.0.2 later.");
  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:F/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:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-29557");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/09/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/12/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/11/12");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:d-link:dir-825");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("dlink_dir_www_detect.nbin");
  script_require_keys("installed_sw/DLink DIR");
  script_require_ports("Services/www", 80, 8080, 8181, 443, 8443);

  exit(0);
}

include('vcf.inc');
include('http.inc');

var port = get_http_port(default:80, embedded:TRUE);

var app_info = vcf::get_app_info(app:'DLink DIR', port:port, webapp:TRUE);

if (empty_or_null(app_info['model']) ||
    'DIR-825' >!< app_info['model'])
    audit(AUDIT_DEVICE_NOT_VULN, 'DLink DIR model');

var constraints = [
  { 'fixed_version' : '3.0.2' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_HOLE
);