CVE-2021-40496 Information disclosure in SAP NetWeaver AS ABAP and ABAP Platform

Medium 4.3 Published 12 Oct 2021 Updated 4 Aug 2024

An authenticated attacker can exploit the SAP ICM authentication function to expose sensitive system details via repeated GET requests.

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

What is CVE-2021-40496?

CVE-2021-40496 is a medium-severity vulnerability in Sap Netweaver Application Server Abap, published on 12 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

SAP Internet Communication framework (ICM) - versions 700, 701, 702, 730, 731, 740, 750, 751, 752, 753, 754, 755, 756, 785, allows an attacker with logon functionality, to exploit the authentication function by using POST and form field to repeat executions of the initial command by a GET request and exposing sensitive data. This vulnerability is normally exposed over the network and successful exploitation can lead to exposure of data like system details.

Weakness: CWE-668

Which versions are affected by CVE-2021-40496?

It affects 2 products.

Products include Sap Netweaver Abap, Sap Netweaver Application Server Abap.

How do I fix CVE-2021-40496?

No fix has been published for CVE-2021-40496 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-40496 being exploited?

There is no known exploitation of CVE-2021-40496 in the wild and no public exploit code.

All Sap Netweaver Application Server Abap vulnerabilities

Sources

Also known as GHSA-chrv-p5rc-j7c8.