0day Hunting the Day After xAI Open-Sourced grok-build (Part 4): ptyctl Test Server's Zero-Auth CORS and Cross-Origin RCE
0day (4) I found the day after xAI open-sourced grok-build.
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0day (4) I found the day after xAI open-sourced grok-build.
0day (3) I found the day after xAI open-sourced grok-build.
0day (1) I found the day after xAI open-sourced grok-build.
0day (2) I found the day after xAI open-sourced grok-build.
Triple cross-verified with IDA Pro, Frida, and mitmproxy, this post reproduces Grok CLI v0.2.98 uploading the entire codebase (including .env, RSA private keys, and other common dev-time secrets) verbatim and unredacted to xAI cloud storage via git bundle at the start of each turn. Compared against v0.2.93, the upload mechanism is identical across both versions, respect_gitignore defaults to false, and one of the 8 independent switches allows remote override.