[Security] Document StatelessProcessGroup security concerns #17591
+25
−8
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A recent PR, #15988, improved StatelessProcessGroup to ensure the
torch.distributed TCPStore uses the specified IP address unless of
binding to all interfaces. Upon closer inspection, this is quite
important, as the way vllm is using this TCPStore includes pickled data,
so malicious access to the TCPStore would allow remote code execution on
a vllm host.
Update some places throughout the code base to reflect the importance of
specifying a secured IP addres for use with this interface.
Finally, fix a couple places in tests to explicitly use localhost
instead of the IP we find that's (probably) the one used for the host's
default route. Otherwise, a host running these tests is briefly
vulnerable on the IP address chosen.
Signed-off-by: Russell Bryant [email protected]