CVE-2023-0017 Improper access control in SAP NetWeaver AS for Java

Critical 9.4 Published 10 Jan 2023 Updated 9 Apr 2025

Unauthenticated attackers can access open interfaces to read, modify user data, and disrupt services in SAP NetWeaver AS for Java.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-0017?

CVE-2023-0017 is a critical missing authorization vulnerability in SAP NetWeaver AS for Java, published on 10 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An unauthenticated attacker in SAP NetWeaver AS for Java - version 7.50, due to improper access control, can attach to an open interface and make use of an open naming and directory API to access services which can be used to perform unauthorized operations affecting users and data on the current system. This could allow the attacker to have full read access to user data, make modifications to user data, and make services within the system unavailable.

Weakness: CWE-284

Which versions are affected by CVE-2023-0017?

It affects 1 product.

Products include Sap Netweaver Application Server for Java.

How do I fix CVE-2023-0017?

No fix has been published for CVE-2023-0017 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-0017 being exploited?

There is no known exploitation of CVE-2023-0017 in the wild and no public exploit code.

Sources

Also known as GHSA-8phc-jhvp-25cw.