hermes-agent [ Crypto ] Fix tx.origin phishing vulnerability in GovernanceToken delegation#5444
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…oken - Replace all tx.origin checks with msg.sender to prevent phishing - Add msg.sender != address(0) guard - Add onlyOwner modifier for snapshot function - Protect delegateVote and revokeDelegate from phishing attacks Closes UnsafeLabs#912
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Unfortunately the changes in this PR didn't fully resolve the issue. Please rework your solution and submit a new pull request. Make sure to review the acceptance criteria in the linked issue and verify all conditions are met before resubmitting. See CONTRIBUTING.md for guidelines. |
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Summary
Replaces all
tx.originusage withmsg.senderin GovernanceToken to prevent phishing attacks where malicious contracts could delegate votes on behalf of users.Changes
delegateVote: replacedtx.originwithmsg.senderrevokeDelegate: replacedtx.originwithmsg.sendersnapshot: replacedtx.origin == adminwithonlyOwnermodifieronlyOwnermodifier usingmsg.sender == adminrequire(msg.sender != address(0))guardsAcceptance Checklist
Closes #912
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