SAP NetWeaver Memory Corruption (3757002)

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

include('compat.inc');

if (description)
{
  script_id(343972);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/09");

  script_cve_id("CVE-2026-66767");

  script_name(english:"SAP NetWeaver Memory Corruption (3757002)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SAP NetWeaver application server is affected by a memory corruption vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of the SAP NetWeaver kernel detected on the remote host is affected by a memory corruption vulnerability as
referenced in SAP Security Note 3757002:

  - SAP NetWeaver Application Server for ABAP and ABAP Platform allows an unauthenticated user to send a
    specially crafted packet that triggers reprocessing of a previously buffered user request, potentially
    hijacking another user's session under narrow timing conditions. Successful exploitation could result in
    high impact on confidentiality and integrity, with low impact on availability of the application.
    (CVE-2026-66767)

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/september-2026.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f6f54b4f");
  script_set_attribute(attribute:"see_also", value:"https://me.sap.com/notes/3757002");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-66767");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/09/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/09");

  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_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 },
  {'equal' : '7.53', 'fixed_display' : fix },
  {'equal' : '7.54', 'fixed_display' : fix },
  {'equal' : '7.77', 'fixed_display' : fix },
  {'equal' : '7.93', 'fixed_display' : fix },
  {'equal' : '8.04', 'fixed_display' : fix },
  {'equal' : '9.16', 'fixed_display' : fix },
  {'equal' : '9.18', 'fixed_display' : fix },
  {'equal' : '9.19', 'fixed_display' : fix },
  {'equal' : '9.20', 'fixed_display' : fix }
];

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