2.3.2 Ensure rsh client is not installed - rsh-redone-client

Information

The rshpackage contains the client commands for the rsh services.

Rationale:

These legacy clients contain numerous security exposures and have been replaced with the more secure SSH package. Even if the server is removed, it is best to ensure the clients are also removed to prevent users from inadvertently attempting to use these commands and therefore exposing their credentials. Note that removing the rshpackage removes the clients for rsh, rcpand rlogin.

Solution

Run the following command to uninstall rsh:

apt-get remove rsh-client rsh-redone-client

Impact:

Many insecure service clients are used as troubleshooting tools and in testing environments. Uninstalling them can inhibit capability to test and troubleshoot. If they are required it is advisable to remove the clients after use to prevent accidental or intentional misuse.

See Also

https://workbench.cisecurity.org/files/2619

Item Details

Category: CONFIGURATION MANAGEMENT, IDENTIFICATION AND AUTHENTICATION

References: 800-53|CM-11, 800-53|IA-2(1), CSCv7|2.6, CSCv7|4.5

Plugin: Unix

Control ID: e15ddd116bd2c76090dd10768446489fecbe030ad15b373da345fe1c0f71ca74