SAP NetWeaver AS ABAP Memory Corruption (3747367)

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

include('compat.inc');

if (description)
{
  script_id(327603);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/20");

  script_cve_id("CVE-2026-44747");
  script_xref(name:"IAVA", value:"2026-A-0694");

  script_name(english:"SAP NetWeaver AS ABAP Memory Corruption (3747367)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SAP NetWeaver ABAP server is affected by a memory corruption vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of SAP NetWeaver AS ABAP detected on the remote host is affected by a memory corruption vulnerability as
referenced in SAP Security Note 3747367:

  - SAP NetWeaver Application Server ABAP allows an authenticated attacker to leverage logical errors in
    memory management to cause a memory corruption that could lead to unauthorized data access,
    modification, or system unavailability. This has high impact on confidentiality, integrity, and
    availability of the application. (CVE-2026-44747)

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/july-2026.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2deefe80");
  script_set_attribute(attribute:"see_also", value:"https://me.sap.com/notes/3747367");
  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:C/I:C/A:C");
  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:C/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-2026-44747");

  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:"2026/07/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/17");

  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) 2026 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');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

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

var fix = 'See vendor advisory';
var constraints = [
  {'equal' : '7.22', 'fixed_display' : fix },
  {'min_version' : '7.53', 'max_version' : '7.54', 'fixed_display' : fix },
  {'equal' : '7.77', 'fixed_display' : fix },
  {'equal' : '7.89', 'fixed_display' : fix },
  {'equal' : '7.93', 'fixed_display' : fix },
  {'equal' : '9.16', 'fixed_display' : fix },
  {'min_version' : '9.18', 'max_version' : '9.20', 'fixed_display' : fix }
];

vcf::sap_netweaver_as::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_HOLE,
  kernel:TRUE
);