According to the police report, the student was walking to her car at an on campus parking structure when the suspect attempted to grab her from behind.
Campus police said the woman elbowed her attacker and screamed scarring him away.
There was no suspect description available and no witnesses have yet to come forward.
However, police are investigating whether Saturday's attack has any connection to a May 23 sexual assault of a 19-year-old student on campus.
In that attack the victim was cornered by to men and forced into a campus gym where she was assualted.
Anyone with information on either of the attacks is asked to call campus police at 310-660-3100.