Ensure shadow group is empty

中级别 1人工审核cos

说明

The shadow group allows system programs which require access the ability to read the /etc/shadow file. No users should be assigned to the shadow group. Any users assigned to the shadow group would be granted read access to the /etc/shadow file. If attackers can gain read access to the /etc/shadow file, they can easily run a password cracking program against the hashed passwords to break them. Other security information that is stored in the /etc/shadow file (such as expiration) could also be useful to subvert additional user accounts.

检查方式

审计方法: 人工审核

此项建议无法自动检查。当您传入 --include-manual 时，扫描结果会列出该项并附带这些说明。

Run the following commands and verify no results are returned: # grep ^shadow:[^:]*:[^:]*:[^:]+ /etc/group # awk -F: '($4 == "<shadow-gid>") { print }' /etc/passwd

修复方式

修复方法: 操作指南或基础设施补丁

Remove all users from the shadow group, and change the primary group of any users with shadow as their primary group.

属性

操作系统: 任意
标签: container-optimized-oscos
参考: CIS Google Container-Optimized OS Benchmark v1.2.0 - 6.2.20 Ensure shadow group is empty