14all.cgi 1.1p15 in mrtgconfig allows remote attackers to determine the physical path to the web root directory via a request with an invalid cfg parameter, which generates an error message that reveals the path.
Directory traversal vulnerability in Multi Router Traffic Grapher (MRTG) allows remote attackers to read portions of arbitrary files via a .. (dot dot) in the cfg parameter for (1) 14all.cgi, (2) 14all-1.1.cgi, (3) traffic.cgi, or (4) mrtg.cgi.