Tethered jailbreak for iOS 4.3.2 is already available using both Redsn0w and PwnageTool, step by step tutorials for which can be found below.
- How to Jailbreak iPhone 4 on iOS 4.3.2 using PwnageTool
- How to jailbreak iPad on iOS 4.3.2 using PwnageTool
- How to jailbreak iPod touch 4G using PwnageTool
- How to jailbreak iOS 4.3.2 on Windows and Mac using Redsn0w