SAP NetWeaver AS ABAP Authorization Bypass Vulnerability

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

include('compat.inc');

if (description)
{
  script_id(234224);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/04/11");

  script_cve_id("CVE-2025-31331");
  script_xref(name:"IAVA", value:"2025-A-0230");

  script_name(english:"SAP NetWeaver AS ABAP Authorization Bypass Vulnerability");

  script_set_attribute(attribute:"synopsis", value:
"The remote SAP NetWeaver ABAP server may be affected by an authorization bypass vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote SAP NetWeaver ABAP server may be affected by an authorization bypass vulnerability.  SAP NetWeaver 
allows an attacker to bypass authorization checks, enabling them to view portions of ABAP code that would 
normally require additional validation. Once logged into the ABAP system, the attacker can run a specific 
transaction that exposes sensitive system code without proper authorization. This vulnerability compromises 
the confidentiality.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://support.sap.com/en/my-support/knowledge-base/security-notes-news/april-2025.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?92dca101");
  script_set_attribute(attribute:"see_also", value:"https://me.sap.com/notes/3577131");
  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:N/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-31331");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/04/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/04/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/04/11");

  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) 2025 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 = [
  {'min_version':'700', 'max_version': '702',	'fixed_display': fix},
  {'equal':'731',	'fixed_display': fix},
  {'equal':'740',	'fixed_display': fix},
  {'min_version':'750', 'max_version': '758',	'fixed_display': fix}
];

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