SAP NetWeaver AS Java Directory Traversal (3727078)

critical Nessus Plugin ID 320857

Synopsis

The remote SAP NetWeaver AS Java server is affected by a directory traversal vulnerability.

Description

The version of SAP NetWeaver Application Server Java detected on the remote host is affected by a directory traversal vulnerability as referenced in SAP Security Note 3727078:

- SAP NetWeaver Application Server Java (Web Container) allows an unauthenticated attacker to craft a malicious HTTP logon request that manipulates file inclusion parameters, enabling path traversal and processing of the included file. Processing the included file could allow the attacker to view or modify sensitive information or render any part of the local system unavailable. (CVE-2026-40128)

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.

See Also

https://me.sap.com/notes/3727078

Plugin Details

Severity: Critical

ID: 320857

File Name: sap_netweaver_as_java_3727078.nasl

Version: 1.1

Type: Remote

Family: Web Servers

Published: 6/12/2026

Updated: 6/12/2026

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.6

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

CVSS Score Source: CVE-2026-40128

CVSS v3

Risk Factor: Critical

Base Score: 9

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

Vulnerability Information

CPE: cpe:/a:sap:netweaver_application_server

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/9/2026

Vulnerability Publication Date: 6/9/2026

Reference Information

CVE: CVE-2026-40128

IAVA: 2026-A-0556