TwentyOne

Summary

The call function does not explicitly handle ties between the player and the dealer. In the current implementation, ties are treated as losses for the player, which may not align with typical Blackjack rules where a tie usually results in the player's bet being returned.

Vulnerability Details

In the call function, the else if statement determines the outcome of the game by comparing the player's hand to the dealer's hand.

The last else block handles both cases where the dealer's hand is greater than or equal to the player's hand, resulting in the player losing even in a tie situation.

Impact

Ties being treated as losses for the player can lead to unfair outcomes and player dissatisfaction.

Tools Used

Manual Review

Recommended Mitigation

Modify both the call and endGame functions to handle bet returns in the event of a tie. A new parameter can be introduced to indicate whether the game ended in a tie. If it is a tie, the endgame function should return the player's original bet amount without any additional winnings.

The else if statement in the call function should be modified to pass the appropriate parameters to endGame function.

With the introduction of a new parameter to indicate whether the game ended in a tie, the endgame function should return the player's original bet amount.