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Rule:
--
Sid:
1257
--
Summary:
This event is generated when an attempt is made to use WinNuke against a
host.
--
Impact:
Serious. Possible Denial of Service (DoS), this can cause a system to
crash or lose network connectivity
--
Detailed Information:
An attacker can send a malformed data packet to and networked host over
TCP and cause a DoS, loss of network connectivity, or a system crash.
--
Affected Systems:
Windows NT Workstation and Server 4.0
Windows NT Workstation and Server 3.5.x
Windows 3.1x
Windows 95
--
Attack Scenarios:
Program is run against a system in an attempt to knock the system off
the network.
--
Ease of Attack:
Simple. An attacker runs WinNuke and enters an IP address of a target
system.
--
False Positives:
None Known.
--
False Negatives:
None Known
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Corrective Action:
Since there is no known fix for several of the affected operating
systems, SMB traffic should be blocked at the firewall and all TCP
traffic on ports 139/135 should be dropped.
--
Contributors:
Sourcefire Research Team
Brian Caswell <bmc@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>
Snort documentation contributed by Mike Rivett ebiz@rivett.org
--
Additional References:
--
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