| # 5.2.10 Ensure SSH PermitUserEnvironment is disabled (Scored) |
| # |
| # Profile Applicability |
| # --------------------- |
| # - Level 1 - Server |
| # - Level 1 - Workstation |
| # |
| # Description |
| # ----------- |
| # The PermitUserEnvironment option allows users to present environment options to the |
| # ssh daemon. |
| # |
| # Rationale |
| # --------- |
| # Permitting users the ability to set environment variables through the SSH daemon could |
| # potentially allow users to bypass security controls (e.g. setting an execution path that has |
| # ssh executing trojan'd programs) |
| # |
| # Audit |
| # ----- |
| # Run the following command and verify that output matches: |
| # |
| # # grep PermitUserEnvironment /etc/ssh/sshd_config |
| # PermitUserEnvironment no |
| # |
| # Remediation |
| # ----------- |
| # Edit the /etc/ssh/sshd_config file to set the parameter as follows: |
| # |
| # PermitUserEnvironment no |
| |
| parameters: |
| openssh: |
| server: |
| permit_user_environment: False |
| |