Shrewsbury goalkeeper Chris Weale fouled JP McGovern in the area on 68 minutes and Miller put United back on terms.
The game ended 2-2 but there was worse news for Carlisle with winger Matty Robson limping out of the game after only nine minutes with a suspected back problem
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Windy and colder. Rain or showers - some of which will be wintry on hills with some snow settling over highest ground. Some sunshine around
The Carlisle United Trust has voted overwhelmingly in favour of proposals to bring a £1.26 million investment to the club.
Cumbria Police has defended its decision to spend one £1.8 million on replacing traditional notebooks with new electronic devices.