GFTP allowing Root access to an FTP user
I have RH 9 and was running an FTP server using VFSTP that came with the distribution. I'm posting this as a warning to anyone who is running a FTP server on their box.
Someone I know used the program GFTP to access the root directory of my system even though I specifically denied root access through the vsftp.conf file. He did not do anything malicious but he COULD have. He said that he could have created/deleted files off of that directory. Needless to say, I am very concerned about that happening and have taken my entire Linux box off line until Red Hat advises me. Unfortunately, I do not know how to contact them directly about this and an unsure if this is a RH problem or perhaps a flaw with all distributions using VSFTP.
Has anyone else run into this same issue and if so, what did you do to secure your system from an attack?? I'm very concerned about a malicious attack on my system. I'm glad that my friend tested this otherwise I never would have known. I guess I thought that locking out root from FTP would have secured my system but it did not.
For your information, I tried to modify the permissions on the root directory and when that happened, the GUI went off line and started to loop at the command prompt. I cannot access the GUI and I think that I have corrupted my system to an unrecoverable way. At least I have everything backed up so that's not the problem.
Any advise or comments are welcome. Thank you.