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Kerberos Server Spoofed Packet Amplification DoS (PingPong) |
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| This script is Copyright (C) 2001-2010 Tenable Network Security, Inc. |
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| Family | Misc. |
| Nessus Plugin ID | 10640 (krb_pingpong.nasl) |
| Bugtraq ID |
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| CVE ID | CVE-1999-0103
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| Description: |
Synopsis :
The remote service is vulnerable to a denial of service attack.
Description :
The remote host is running a Kerberos server which seems to be
vulnerable to a 'ping-pong' attack.
When contacted on the UDP port, this service always responds, even to
malformed requests. This makes it possible to involve it a
'ping-pong' attack, in which an attacker spoofs a packet between two
machines running this service, causing them to spew characters at each
other, slowing the machines down and saturating the network.
See also :
http://www.cert.org/advisories/CA-1996-01.html
Solution :
Disable this service if you do not use it.
Risk factor :
High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
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