Container-Optimized OS
TMA-COS-6.2.20
Ensure shadow group is empty
Mô tả
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.
Cách kiểm tra
Phương pháp kiểm tra: Xem xét thủ công
Run the following commands and verify no results are returned: # grep ^shadow:[^:]*:[^:]*:[^:]+ /etc/group # awk -F: '($4 == "<shadow-gid>") { print }' /etc/passwd
Cách khắc phục
Phương pháp khắc phục: Hướng dẫn hoặc bản vá hạ tầng
Remove all users from the shadow group, and change the primary group of any users with shadow as their primary group.
Thuộc tính
- Hệ điều hành
- Bất kỳ
- Thẻ
- container-optimized-oscos
- Tham chiếu
- CIS Google Container-Optimized OS Benchmark v1.2.0 - 6.2.20 Ensure shadow group is empty