Vulnerability Assessment & Network Security Forums
If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Searches for the existence of qotd
Detailed Explanation for this Vulnerability Assessment
The quote service (qotd) is running on this host.
A server listens for TCP connections on TCP port 17. Once a connection
is established a short message is sent out the connection (and any
data received is thrown away). The service closes the connection
after sending the quote.
Another quote of the day service is defined as a datagram based
application on UDP. A server listens for UDP datagrams on UDP port 17.
When a datagram is received, an answering datagram is sent containing
a quote (the data in the received datagram is ignored).
An easy attack is 'pingpong' which IP spoofs a packet between two machines
running qotd. This will cause them to spew characters at each other,
slowing the machines down and saturating the network.
- Under Unix systems, comment out the 'qotd' line in /etc/inetd.conf
and restart the inetd process
- Under Windows systems, set the following registry keys to 0 :
Then launch cmd.exe and type :
net stop simptcp
net start simptcp
To restart the service.
Network Security Threat Level:
None / CVSS Base Score : 0
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 1999 Mathieu Perrin
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