The Upgraded new_address itself cannot be upgraded. Stucked in use forever

[hats-bug-reporter]

Github username: @kodakr
Twitter username: @Kodak_Rome
Submission hash (on-chain): 0x583795c4d11c46f50c86555838ec16cca3bc363cff2e84a4a26a7cfb5270e867
Severity: high

Description:
In eth\contracts\Migrations.sol::upgrade(), This implementation which is an exact copy of the current Migration.sol cannot be called by it. Hence cannot be setCompleted()
Recall that the above named function is restricted to only the owner who is the msg.sender at deployment. Current Migration.sol is not the deployer hence lacks this access.

• cannot be upgraded
• setCompleted() is restricted & cannot be called by current Migration.sol
  This implies that the migration.sol contract is unUpgradeable.

[fbielejec]

Does not follow submission guideline - no POC, but mostly marking as invalid as Migrations.sol should not be upgradeable at all. Migrations is just a counter, and using is an opt-in for migration scripts that can (but need not to) check whether a previous migration script was applied (context dependent).

[fbielejec]

duplicate with #3