GHSA-hj3w-wrh4-44vp LLama Factory Remote OS Command Injection Vulnerability

• PyPI llamafactory: < 0.9.1 → fixed in 0.9.1

Summary A critical remote OS command injection vulnerability has been identified in the Llama Factory training process. This vulnerability arises from improper handling of user input, allowing malicious actors to execute arbitrary OS commands on the host system. The issue is caused by insecure usage of the `Popen` function with `shell=True`, coupled with unsanitized user input. Immediate remediation is required to mitigate the risk. Affected Version Llama Factory versions Generator[Dict["Component", Any], None, None]: ... args = self._parse_train_args(data) if do_train else self._parse_eval_args(data) ... self.trainer = Popen(f"llamafactory-cli train {save_cmd(args)}", env=env, shell=True) yield from self.monitor() ``` Proof of Concept (PoC) Steps to Reproduce • Deploy llama factory • Execute the exploitation script from: https://gist.github.com/superboy-zjc/f2d2b93ae511c445ba97e144b70e534d ```bash python3 llama-factory-rce.py --url http://127.0.0.1:7861 --cmd "curl XXX" --trace ``` Bad actors are able to execute any OS command as they want. Remediation Recommendations Avoid using `shell=True` in `Popen`.** • Instead, pass the command and its arguments as a list. This prevents user inputs from being executed as part of a shell command. ```python cmd = [ "llamafactory-cli", "train", *save_cmd(args).split(), ] self.trainer = Popen(cmd, env=env) ```