SAP takes the security of its vast product portfolio very seriously and thus releases security fixes for
vulnerabilities reported by external researchers and their customers every second Tuesday of the month.
SAP Note 3025637
was released on
13.04.2021 and deals with
"[CVE-2021-21492] Content spoofing in NetWeaver AS Java HTTP Service" within Java.
We advice you to follow the instructions, to resolve
medium potential for exploitation
in component BC-JAS-WEB.
According to SAP Security Advisory team a workaround does not exist. It is advisable to implement the correction as part of maintenance.
Risk specificationSAP NetWeaver Application Server Java HTTP Service does not sufficiently validate login groups in URLs, resulting in a content spoofing vulnerability when the directory listing is enabled.
The affected system component now provides validation for the HTTP URL against the list of configured logon groups on Application Server Java HTTP Service.
SAP Netweaver Application Server Java is part of the SAP NetWeaver Application Platform. It provides the complete infrastructure for deploying and running Java applications.
- The AS Java Home: SAP Netweaver Application Server Java wiki
- A dedicated SAP NetWeaver 7.40 Application Server for Java Security Guide exists.
The advisory is valid for
- SERVERCORE 7.10 9
- SERVERCORE 7.11 9
- SERVERCORE 7.20 9
- SERVERCORE 7.30 9
- SERVERCORE 7.31 9
- SERVERCORE 7.40 9
- SERVERCORE 7.50 9