TMA-COS-5.2.2

Ensure password reuse is limited

高级别 2自动化cos

说明

The /etc/security/opasswd file stores the users' old passwords and can be checked to ensure that users are not recycling recent passwords. Forcing users not to reuse their past 5 passwords make it less likely that an attacker will be able to guess the password. Note that these change only apply to accounts configured on the local system.

检查方式

审计方法: Shell 命令

shell

bad=0; for p in /etc/pam.d/system-password /etc/pam.d/system-auth; do grep -Pq "^\h*password\h+[^#\n\r]+\h+pam_pwhistory\.so\h+([^#\n\r]+\h+)?remember=([5-9]|[1-9][0-9]+)\b" $p 2>/dev/null || bad=1; done; [ $bad -eq 0 ] && echo compliant || echo noncompliant

预期输出: compliant

修复方式

修复方法: 操作指南或基础设施补丁

Set remembered password history to conform to site policy. Many distributions provide tools for updating PAM configuration, consult your documentation for details. If no tooling is provided edit the appropriate /etc/pam.d/ configuration file and add or modify the pam_pwhistory.so or pam_unix.so lines to include the remember option: password required pam_pwhistory.so remember=5 password required pam_unix.so remember=5

属性

操作系统: 任意
标签: authcontainer-optimized-oscos
参考: CIS Google Container-Optimized OS Benchmark v1.2.0 - 5.2.2 Ensure password reuse is limited

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 cos --level 2