SonicWall Secure Mobile Access Arbitrary File Delete (SNWLID-2021-0021)

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

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

if (description)
{
  script_id(153807);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2021-20034");
  script_xref(name:"IAVA", value:"2021-A-0446-S");

  script_name(english:"SonicWall Secure Mobile Access Arbitrary File Delete (SNWLID-2021-0021)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by an arbitrary file delete vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the remote SonicWall Secure Mobile Access is affected by an arbitrary file 
delete vulnerability. An unauthenticated, remote attacker can exploit this to bypass authentication and delete
arbitrary files. 

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0021
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?574daca0");
  # https://www.sonicwall.com/support/product-notification/security-notice-critical-arbitrary-file-delete-vulnerability-in-sonicwall-sma-100-series-appliances/210819124854603/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?41b3291b");
  script_set_attribute(attribute:"solution", value:
"Upgrade to version 9.0.0.11-31sv, 10.2.0.8-37sv, 10.2.1.1-19sv or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-20034");

  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:"2021/09/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/09/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/10/01");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:sonicwall:sma_100_firmware");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("sonicwall_sma_web_detect.nbin");
  script_require_keys("installed_sw/SonicWall Secure Mobile Access");

  exit(0);
}

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

var app_name = 'SonicWall Secure Mobile Access';
var port = get_http_port(default:443,embedded:TRUE);
var app = vcf::get_app_info(app:app_name, webapp:TRUE, port:port);

if (app['Model'] !~ "SMA (200|210|400|410|500v)")
  audit(AUDIT_WEB_APP_NOT_AFFECTED, app_name, port);

var constraints =
[
  {'min_version' : '9.0.0.0.0', 'max_version': '9.0.0.10.28', 'fixed_version' : '9.0.0.11.31', 'fixed_display':'Upgrade to version 9.0.0.11-31sv or later.'},
  {'min_version' : '10.2.0.0.0', 'max_version': '10.2.0.7.34', 'fixed_version' : '10.2.0.8.37', 'fixed_display':'Upgrade to version 10.2.0.8-37sv or later.'},
  {'min_version' : '10.2.1.0.0', 'max_version': '10.2.1.0.17', 'fixed_version' : '10.2.1.1.19', 'fixed_display':'Upgrade to version 10.2.1.1-19sv or later.'},
];

vcf::check_version_and_report(app_info:app, constraints:constraints, severity:SECURITY_WARNING);