President Elector

Description: The selectPresident function modifies critical state variables before completing all logic. If future modifications introduce external calls, this could be exploited to manipulate the election process through reentrancy.

Impact:

• State Manipulation: If external calls were introduced, an attacker could potentially reenter the function and alter the election results by manipulating state variables such as s_currentPresident, s_candidateList, and s_previousVoteEndTimeStamp.

Proof of Concept: Currently, no external calls exist in the function, so direct exploitation isn't possible. However, if external calls were added, reentrancy could be exploited as follows:

Recommended Mitigation:

• Use the "Checks-Effects-Interactions" Pattern: Ensure all state changes occur after all logic is complete and before any external calls.

• Reentrancy Guard: Consider using a reentrancy guard (such as OpenZeppelin's ReentrancyGuard) to prevent reentrant calls.