CCE-91260-0| Platform: cpe:/o:ubuntu:ubuntu_linux:14.04 | Date: (C)2017-03-14 (M)2023-07-04 |
Verify User/Group Ownership on /etc/shadow (Scored)
The /etc/shadow file contains the one-way cipher text passwords for each user defined in the /etc/passwd file. The command below sets the user and group ownership of the file to root.
Parameter:
[UID of ROOT, GID of shadow]
Technical Mechanism:
If attackers can gain read access to the /etc/shadow file, they can easily run a password cracking program against the hashed password to break it. Other security information that is stored in the /etc/shadow file (such as expiration) could also be useful to subvert the user accounts.
Fix:
If the ownership of the /etc/shadow file are incorrect, run the following command to correct them:
# /bin/chown root:shadow /etc/shadow
| CCSS Severity: | CCSS Metrics: |
| CCSS Score : 8.4 | Attack Vector: LOCAL |
| Exploit Score: 2.5 | Attack Complexity: LOW |
| Impact Score: 5.9 | Privileges Required: NONE |
| Severity: HIGH | User Interaction: NONE |
| Vector: AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Scope: UNCHANGED |
| | Confidentiality: HIGH |
| | Integrity: HIGH |
| | Availability: HIGH |
| | |
References: | Resource Id | Reference |
|---|
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:33956 |
