CVE-2021-21481 Missing authorization in SAP NetWeaver AS JAVA (MigrationService)
An unauthorized attacker can access configuration objects and gain administrative privileges due to missing authorization checks in SAP NetWeaver MigrationService.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-21481?
CVE-2021-21481 is a critical missing authorization vulnerability in Sap Netweaver, published on 9 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The MigrationService, which is part of SAP NetWeaver versions 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, does not perform an authorization check. This might allow an unauthorized attacker to access configuration objects, including such that grant administrative privileges. This could result in complete compromise of system confidentiality, integrity, and availability.
Weakness: CWE-863
Which versions are affected by CVE-2021-21481?
It affects 1 product.
Products include Sap Netweaver.
How do I fix CVE-2021-21481?
No fix has been published for CVE-2021-21481 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-2021-21481 being exploited?
There is no known exploitation of CVE-2021-21481 in the wild and no public exploit code.
Other vulnerabilities in Sap Netweaver
Sources
Also known as GHSA-cwx3-9577-fcx4.