Critical · published September 14, 2021
CVSS calls it critical at 9.9. It is confirmed in active exploitation. It sits in the 98.5th percentile for exploit probability.
🚨 An authenticated non-admin user can upload a malicious file that runs operating system commands with Java Server process privileges — a recipe for disaster! 🔥 It's like letting a guest at a hotel slip a tampered keycard into the system, giving them access to every room and the ability to shut down the entire building without anyone knowing. How sneaky is that? An attacker could unleash chaos: reading or altering sensitive information, or even crashing the server completely, making it unavailable to everyone. This isn't just a prank; it could lead to devastating data breaches or downtime that affects business operations.
It's like letting a guest at a hotel slip a tampered keycard into the system, giving them access to every room and the ability to shut down the entire building without anyone knowing. How sneaky is that? CVE-2021-38163 is a vulnerability in SAP NetWeaver's Visual Composer, where an authenticated user can upload a malicious file that executes commands on the server with high privileges, due to a lack of proper input validation and restrictions on file processing.
An attacker could unleash chaos: reading or altering sensitive information, or even crashing the server completely, making it unavailable to everyone. This isn't just a prank; it could lead to devastating data breaches or downtime that affects business operations. To protect your systems, immediately patch to the latest version of SAP NetWeaver that addresses this vulnerability, and conduct a security review of user permissions to minimize access to non-administrative users. Tightening file upload restrictions can also help mitigate risks. You've got this! Follow these steps and you'll be on your way to securing your SAP environment. 🛡️