alt Hacker News$0 in rewards for RCE on the Windows build servers is crazy. I understand he didn’t find an actual zero-day, only a configuration issue, but still. Imagine the global havoc you can cause if you can pollute the build environment with backdoored DLLs…
$0 in rewards for RCE on the Windows build servers is crazy. I understand he didn’t find an actual zero-day, only a configuration issue, but still. Imagine the global havoc you can cause if you can pollute the build environment with backdoored DLLs…
I was a windows build engineer at Microsoft. I am unfamiliar with this specific UI for managing build tools (I think it may have been added after I left), however I would be surprised if it was actually RCE-capable.
I notice that it requires the tool to be pulled from NuGet. While it looks like you could enter any package and NuGet source, I would be very surprised if there wasn’t a locked down whitelist of allowed sources (limited to internal Microsoft NuGet feeds).
Locking down NuGet packages was one of the primary things we (the Windows Engineering System team) were heavily focusing on when I left years ago. We were explicitly prevented from using public NuGet packages at all. We had to repackage them and upload them to the internal source to be used.