Jianfei Hu, Author at Tetrate

How Tetrate Service Bridge Protects Log4j Remote Execution

We love open source, but recognize the reality that security can be hard. Recently the Log4j vulnerability (CVE-2021-44228) made everyone realize how wide-spread and severe a security incident can be when it comes to security root causes in the open source. In this blog we will first briefly explain the Log4J CVE as background, then demonstrate how Tetrate Service Bridge can help by providing a built-in Web Application Firewall engine.

New in Istio 1.12: Wasm-based extensions and ecosystem

New WebAssembly infrastructure in Istio makes it easy to inject additional functionality into mesh deployments

Three years in the making, Istio now has a powerful extension mechanism for adding custom and third-party Wasm modules to sidecars in the mesh. Tetrate engineers Takeshi Yoneda and Lizan Zhou have been instrumental in making this happen. This post will cover the basics of Wasm in Istio and why it matters followed by a short tutorial on building your own Wasm plugin and deploying it to the mesh.