Who is liable

_ That might be part of the answer, according to Robert Fisher, professor of computer vision at Edinburgh University. “In theory companies are supposed to have liability, but we’re in a grey area where they could say their product worked just fine, but it was the cloud that made a mistake, or the telecoms provider, and they all disagree as to who is liable,” he said. _ (The Guardian.)

Is "who is liable" an indirect question in the passage above?