Bugtraq mailing list archives
Possible Exchange 5.5 Server DoS
From: Christer Enberg <chribba () DEO COM>
Date: Tue, 12 Sep 2000 08:30:48 +0200
<<exerror.zip>> This happend early this morning on one of our mailservers running Exchange 5.5 on WinNT4 OP5. Suddenly the Information Store (STORE.EXE) crashed with a strange error saying something in the way of "Error while processing an email message", restarting both the server and all of Exchange's components has no effect at all. The only way of solving this problem as I discovered is to shut down all Exchange Services and Totally remove the content of the IMCDATA directory containing the mail queues and then restart exchange. It seems that the attachment line is the problem, by removing the attachment and sending the mail nothing happens. Anyone know of some more information about this "DoS" attack or how it can be prevented, I have not seen any off things in the mail that would bring an Exchange server to a stop. This message has been sent to Microsoft who has not yet given any answer. Regards, ____________________________________________ christer.enberg () deo com system administrator / computer technician wallingatan 11, 111 60 Stockholm tel +46 8 412 41 19, fax +46 8 412 41 79 mob +46 733 73 33 19 www.deo.com
Attachment:
exerror.zip
Description:
Current thread:
- Possible Exchange 5.5 Server DoS Christer Enberg (Sep 13)
- Re: Possible Exchange 5.5 Server DoS 3APA3A (Sep 14)
- Re: Possible Exchange 5.5 Server DoS Lee Ann Goldstein (Sep 25)