The network element must have the Finger service disabled.

From Perimeter Router Security Technical Implementation Guide Cisco

Part of The finger service is not disabled.

SV-15305r2_rule The network element must have the Finger service disabled.

Vulnerability discussion

The finger service supports the UNIX finger protocol, which is used for querying a host about the users that are logged on. This service is not necessary for generic users. If an attacker were to find out who is using the network, they may use social engineering practices to try to elicit classified DoD information.

Check content

Review the device configuration. Beginning with IOS 12.1(5), finger is disabled by default. For IOS version 12.0 through 12.1(4), verify that the no ip finger command is present. For any version prior to 12.0, verify that the no service finger command is present.

Fix text

Configure the device to disable the Finger service.

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