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Explicitly require owner removal matches expected owner at index #42

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merged 15 commits into from
Apr 2, 2024

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stevieraykatz
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An auditor from our Code4rena audit correctly identified that a call to removeOwnerAtIndex could be replayed on another chain but might remove a different owner if the owner indexes don't match cross-chain. Since this method is one of the one's that is allowed to be cross-chain repayable, this could lead to a malicious actor removing an owner that shouldn't be removed.

This PR adds the owner bytes to the removeOwnerAtIndex call so that the removal explicitly targets an index and an owner.

@wilsoncusack
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stevieraykatz and others added 6 commits March 27, 2024 13:47
Co-authored-by: wilsoncusack <wilson.cusack@coinbase.com>
Co-authored-by: wilsoncusack <wilson.cusack@coinbase.com>
Co-authored-by: wilsoncusack <wilson.cusack@coinbase.com>
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@stevieraykatz stevieraykatz merged commit e77e62e into main Apr 2, 2024
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@stevieraykatz stevieraykatz deleted the remove-owner-at-index-replay-fix branch April 2, 2024 18:04
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2 participants