Finding ID | Version | Rule ID | IA Controls | Severity |
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V-22465 | GEN005516 | SV-46027r1_rule | ECSC-1 | Low |
Description |
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SSH TCP connection forwarding provides a mechanism to establish TCP connections proxied by the SSH server. This function can provide similar convenience to a Virtual Private Network (VPN) with the similar risk of providing a path to circumvent firewalls and network ACLs. If this function is necessary to support a valid mission requirement, its use must be authorized and approved in the system accreditation package. |
STIG | Date |
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SUSE Linux Enterprise Server v11 for System z | 2013-04-26 |
Check Text ( C-43298r1_chk ) |
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Check the SSH client configuration for the TCP forwarding setting. # grep -i AllowTCPForwarding /etc/ssh/ssh_config | grep -v '^#' If no lines are returned, or the returned setting has a value evaluating to "yes", this is a finding. |
Fix Text (F-39387r1_fix) |
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Edit the SSH client configuration and change or add the "AllowTCPForwarding" setting to "no". |