SAP NetWeaver Broken Access Control (3798345)

critical Nessus Plugin ID 379591

Synopsis

The remote SAP NetWeaver application server is affected by a broken access control vulnerability.

Description

The version of the SAP NetWeaver kernel detected on the remote host is affected by a broken access control vulnerability in SAP Gateway as referenced in SAP Security Note 3798345:

- SAP Gateway activates the default Access Control List with high privileges allowing categorization of external attacker as internal application server. As a result an unauthenticated attacker with network access to the SAP Gateway could exploit this weakness to potentially perform unauthorized actions within the application environment, resulting in a high impact on the confidentiality, integrity, and availability of the affected system. (CVE-2026-89103)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Apply the appropriate patch according to the vendor advisory.

Plugin Details

Severity: Critical

ID: 379591

File Name: sap_netweaver_kernel_3798345.nasl

Version: 1.1

Type: Remote

Family: Web Servers

Published: 11/12/2026

Updated: 11/12/2026

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7

Percentile: 97.91

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-89103

CVSS v3

Risk Factor: Critical

Base Score: 10

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/a:sap:netweaver_application_server

Required KB Items: Settings/ParanoidReport, installed_sw/SAP Netweaver Application Server (AS)

Patch Publication Date: 11/10/2026

Vulnerability Publication Date: 11/10/2026

Reference Information

CVE: CVE-2026-89103

Detections

Analytics