TMA-AIX-4.6.3.13

Ensure sshd PermitEmptyPasswords is disabled

严重级别 1自动化aix

说明

The recommendation is to edit the /etc/ssh/sshd_config file to ensure that the SSH daemon does not authenticate users with a null password. If password authentication is used and an account has an empty password, the SSH server must be configured to disallow access to the account. Permitting empty passwords could create an easy path of access for hackers to enter the system. Audit: evaluates the effective configuration from `sshd -T` (Match blocks must be reviewed separately).

检查方式

审计方法: Shell 命令

shell

command -v sshd >/dev/null 2>&1 || exit 1; out=$(sshd -T 2>/dev/null) || exit 1; r=compliant; for p in '^permitemptypasswords[[:blank:]]+no$'; do printf '%s\n' "$out" | grep -Eiq -- "$p" || r="not matched: $p"; done; echo "$r"

预期输出: compliant

修复方式

修复方法: 操作指南或基础设施补丁

Edit the /etc/ssh/sshd_config file to disable the acceptance null passwords: vi /etc/ssh/sshd_config Replace: #PermitEmptyPasswords no With: PermitEmptyPasswords no Re-cycle the sshd daemon to pick up the configuration changes: stopsrc -s sshd startsrc -s sshd

属性

操作系统: 任意
标签: aixssh
参考: CIS IBM AIX 7 Benchmark v1.2.0 - 4.6.3.13 Ensure sshd PermitEmptyPasswords 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 aix