The two leaders talked for a quarter of an hour in a meeting hosted by French President Francois Hollande before a lunch of world leaders at the D-Day anniversary ceremonies, they added.
Among the steps envisaged was a potential ceasefire in eastern Ukraine, where there have been clashes between government security forces and pro-Russian separatists.
It was the first meeting between the two men since pro-western chocolate tycoon Poroshenko won Ukraine's presidential election on May 25.
"They were able to begin a dialogue on possible de-escalation measures including Moscow recognising Porochenko's election," he added, underlining that Putin would be sending an ambassador to Kiev tomorrow.
"The practicalities of a ceasefire will also be discussed in the coming days.