ABB IDAL FTP Server Buffer Overflow
Posted on 25 June 2019
The IDAL FTP server is vulnerable to a buffer overflow where a large string is sent by an authenticated attacker that causes a buffer overflow. This overflow is handled, but terminates the process. An authenticated attacker can send a FTP command string of 472 bytes or more to overflow a buffer causing an exception that terminates the server. An unauthenticated attacker can take advantage of the hardcoded or default credential pair exor/exor to become an authenticated attacker.
