1413.txt

来自「This is the snapshot of Snot Latest Rule」· 文本 代码 · 共 57 行

Rule:

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Sid:
1413

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Summary:
This event is generated when an SNMP connection over UDP using the default 'private' community is made.

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Impact:
Information gathering

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Detailed Information:
SNMP (Simple Network Management Protocol) v1 uses communities and IP addresses to authenticate communication between the SNMP client and SNMP daemon. Many SNMP implementations come pre-configured with 'public' and 'private' communities. If these are not disabled, the attacker can gather a great deal of information about the device running the SNMP daemon.

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Affected Systems:
Devices running SNMP daemons with 'private' community enabled.

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Attack Scenarios:
An attacker scans a range of IPs for SNMP servers having the 'private' community set and gathers information about the hosts.

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Ease of Attack:
Simple.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Disable the 'public' and 'private' communities before connecting the device with SNMP on the Internet or block access to SNMP ports using a packet filtering firewall for unauthorized addresses.

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Contributors:
Sourcefire Vulnerability Research Team
Brian Caswell <[e-mail]>
Nigel Houghton <[e-mail]>
Snort documentation contributed by Chaos <[e-mail]>

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Additional References:

CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-1999-0517

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