| GEN:SID | 1:374 |
| Message | ICMP PING IP NetMonitor Macintosh |
| Summary | This event is generated when an ICMP echo request is made from a MacIntosh host running IPNetMonitor.
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| Impact | Information gathering. An ICMP echo request can determine if a host is active.
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| Detailed Information | An ICMP echo request is used by the ping command to elicit an ICMP echo reply from a listening live host. An echo request that originates from a MacIntosh host running IPNetMonitor contains a unique payload in the message request.
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| Affected Systems | All
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| Attack Scenarios | An attacker may attempt to determine live hosts in a network prior to launching an attack.
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| Ease of Attack | Simple
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| Corrective Action | Block inbound ICMP echo requests.
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| Additional References | Arachnids: http://www.whitehats.com/info/IDS157
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| Rule References | arachnids: 157
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