CVE-2023-21842 Missing authorization in WebLogic Server

High 7.5 Published 17 Jan 2023 Updated 16 Sep 2024

Unauthenticated attackers can access critical data in Oracle WebLogic Server due to missing authorization checks.

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-2023-21842?

CVE-2023-21842 is a high-severity missing authorization vulnerability in Oracle Weblogic Server, published on 17 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Container). Supported versions that are affected are 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Weakness: CWE-306

Which versions are affected by CVE-2023-21842?

It affects 1 product.

Products include Oracle Weblogic Server.

How do I fix CVE-2023-21842?

No fix has been published for CVE-2023-21842 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-2023-21842 being exploited?

There is no known exploitation of CVE-2023-21842 in the wild and no public exploit code.

All Oracle Weblogic Server vulnerabilities

Sources

Also known as GHSA-v7hq-gmm8-4vwh.