SAP NetWeaver AS Missing Authorization Check (3059446)

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

include('deprecated_nasl_level.inc');

include('compat.inc');

if (description)
{
  script_id(152096);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/07/28");

  script_cve_id("CVE-2021-33671");
  script_xref(name:"IAVA", value:"2021-A-0310");

  script_name(english:"SAP NetWeaver AS Missing Authorization Check (3059446)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SAP NetWeaver AS Java server may be affected by a missing authorization check vulnerability");
  script_set_attribute(attribute:"description", value:
"A missing authorization check vulnerability exists in the Administration Workset of the SAP NetWeaver Guided Procedures
versions 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, and 7.50. An authenticated, remote attacker can exploit this, to escalate
privileges and allow an unauthorized user the ability to read, modify or delete restricted data.

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://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=580617506");
  script_set_attribute(attribute:"see_also", value:"https://launchpad.support.sap.com/#/notes/3059446");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:L/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:"cvss_score_source", value:"CVE-2021-33671");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/07/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/07/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/07/27");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:sap:netweaver_application_server");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

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

  script_dependencies("sap_netweaver_as_web_detect.nbin");
  script_require_keys("installed_sw/SAP Netweaver Application Server (AS)", "Settings/ParanoidReport");
  script_require_ports("Services/www", 80, 443, 8000, 50000);

  exit(0);
}

include('vcf_extras_sap.inc');

var app_info = vcf::sap_netweaver_as::get_app_info();

if (report_paranoia < 2) audit(AUDIT_PARANOID);

var fix = 'See vendor advisory';
var constraints = [
    {'equal' : '7.10', 'fixed_display' : fix },
    {'equal' : '7.11', 'fixed_display' : fix },
    {'equal' : '7.20', 'fixed_display' : fix },
    {'equal' : '7.30', 'fixed_display' : fix },
    {'equal' : '7.31', 'fixed_display' : fix },
    {'equal' : '7.40', 'fixed_display' : fix },
    {'equal' : '7.50', 'fixed_display' : fix }
  ];

vcf::sap_netweaver_as::check_version_and_report(app_info:app_info, 
                                                constraints:constraints, 
                                                severity:SECURITY_WARNING,
                                                abap:FALSE);