Ensure Remote Login Is Disabled

高级别 1自动化macos

说明

Remote Login allows an interactive terminal connection to a computer. Disabling Remote Login mitigates the risk of an unauthorized person gaining access to the system via Secure Shell (SSH). While SSH is an industry standard to connect to POSIX servers, the scope of the benchmark is for Apple macOS clients, not servers. macOS does have an IP-based firewall available (pf, ipfw has been deprecated) that is not enabled or configured. There are more details and links in the Network sub-section. macOS no longer has TCP Wrappers support built in and does not have strong Brute- Force password guessing mitigations, or frequent patching of OpenSSH by Apple. Since most macOS computers are mobile workstations, managing IP-based firewall rules on mobile devices can be very resource intensive. All of these factors can be parts of running a hardened SSH server.

检查方式

审计方法: Shell 命令

shell

a=$(/usr/sbin/systemsetup -getremotelogin 2>/dev/null) || exit 1
b=$(/bin/launchctl print-disabled system 2>/dev/null | /usr/bin/grep -c '"com.openssh.sshd" => disabled')
c=$(/bin/launchctl list 2>/dev/null | /usr/bin/grep -c "com.openssh.sshd")
if printf '%s' "$a" | /usr/bin/grep -q "Remote Login: Off" && [ "$b" -eq 1 ] && [ "$c" -eq 0 ]; then echo compliant; else echo "$a; disabled=$b; running=$c"; fi

预期输出: compliant

修复方式

修复方法: 操作指南或基础设施补丁

Perform the following to disable Remote Login: Graphical Method: Perform the following steps to disable Remote Login: 1. Open System Settings 2. Select General 3. Select Sharing 4. Set Remote Login to disabled Terminal Method: Run the following command to disable Remote Login: % /usr/bin/sudo /usr/sbin/systemsetup -setremotelogin off Do you really want to turn remote login off? If you do, you will lose this connection and can only turn it back on locally at the server (yes/no)? Entering yes will disable remote login. Note: This command will disable the service as well as stop it running in time.

属性

操作系统: macos-14
标签: loggingmacossonoma
参考: CIS Apple macOS 14.0 Sonoma Benchmark v3.1.0 - 2.3.3.4 Ensure Remote Login Is Disabled

检查本机

请在您有权审计的机器上运行此命令。扫描为只读操作。

shell

tmaegis scan --target macos