The home crowd were fired up by Rangers' positive start to the second period and it was evident in the Ibrox side's play as RickyFoster crossed for Lafferty to send a deflected shot wide.
Elebert glanced in a header from close range shortly after the half-hour mark that was just past Langfield's left-hand post before Aberdeen's RickyFoster kept out an Alex Neil effort from the right-hand side of the penalty area.