Nmap Announce mailing list archives
Re: Setting nmap host_timeout too low may cause DoS on inetd (?)
From: lamont () security hp com (LaMont Jones)
Date: Fri, 17 Mar 2000 16:59:16 -0700 (MST)
BSD derived inetd's have looping control built in. they usually log this, "looping too fast", via syslog and then halt operations for a bit. it's a weak form of DoS mitigation, and it works. i don't know the vintage of HPUX inetd, but is it syslogging anything similar to "looping too fast"? my HPUX box is unavailable from my location here, so i can't run strings on it to see if that's built in.
If it's an old enough, unpatched, inetd, then it has problems with looping. The current inetd for 10.20 says: % strings -a /usr/sbin/inetd | grep 'looping' %s: Server failing (looping), service terminated lamont
Current thread:
- Setting nmap host_timeout too low may cause DoS on inetd (?) Alek O. Komarnitsky (Mar 15)
- Re: Setting nmap host_timeout too low may cause DoS on inetd (?) Thomas Reinke (Mar 16)
- <Possible follow-ups>
- RE: Setting nmap host_timeout too low may cause DoS on inetd (?) Jones, Greg (Mar 16)
- RE: Setting nmap host_timeout too low may cause DoS on inetd (?) Alek O. Komarnitsky (Mar 16)
- RE: Setting nmap host_timeout too low may cause DoS on inetd (?) Jose Nazario (Mar 17)
- Re: Setting nmap host_timeout too low may cause DoS on inetd (?) LaMont Jones (Mar 17)
- RE: Setting nmap host_timeout too low may cause DoS on inetd (?) Jose Nazario (Mar 17)