Ajaccio and Lorient shared the points at the Stade Francois Coty after neither team could force a winner.
The visitors started brightly and opened the scoring with a fifth-minute header by Gregory Bourillon from a Yann Jouffre corner.
Benjamin Andre missed a chance to restore parity in the 18th minute when Damien Tiberi's cross found him inside the box.
However, Andre's header grazed the crossbar and Lorient remained in the lead.
Guillermo Ochoa got down well to save from Kevin Monnet-Paquet on the half-hour mark to keep the hosts in the game.
Ajaccio managed to draw level after an hour when Brazilian striker Ilan notched his fifth goal since moving to Corsica.
Tiberi tested the Lorient goal twice late on but to no avail and the match ended all square.
The point moves Ajaccio above Brest in Ligue 1, while Lorient remain in 13th position.