Language: Java
Label: vulnerable
CWE: CWE-502 \u2014 Deserialization of Untrusted Data
The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

Code:
		public void rotatePositions(IPositionRotateble set) {
			if (this == SOUTH) {
				set.rotateLeft();
				set.rotateLeft();
			} else if (this == EAST) {
				set.rotateRight();
			} else if (this == WEST) {
				set.rotateLeft();
			}
		}