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GEN:SID | 1:1412 |
Message | SNMP public access tcp |
Summary | This event is generated when an SNMP connection over TCP using the default 'public' community is made. |
Impact | Information gathering |
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 'public' communities. If these are not disabled, the attacker can gather a great deal of information about the device running the SNMP daemon. |
Affected Systems | Devices running SNMP daemons with 'public' community enabled. |
Attack Scenarios | An attacker scans a range of IPs for SNMP servers having the 'public' community set and gathers information about the hosts. |
Ease of Attack | Simple. |
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. |
Additional References | CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0013 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0012 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-1999-0517 |
Rule References | bugtraq: 2112 bugtraq: 4088 bugtraq: 4089 bugtraq: 7212 cve: 1999-0517 cve: 2002-0012 cve: 2002-0013 |
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DID:448403
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