CCE-95427-1| Platform: cpe:/o:amazon:linux:2, cpe:/o:centos:centos:7, cpe:/o:oracle:linux:7, cpe:/o:oracle:linux:8, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9 | Date: (C)2021-03-05 (M)2023-07-04 |
The default TMOUT determines the shell timeout for users. The TMOUT value is measured in seconds.
Rationale:
Having no timeout value associated with a shell could allow an unauthorized user access to another user's shell session (e.g. user walks away from their computer and doesn't lock the screen). Setting a timeout value at least reduces the risk of this happening.
Parameter:
[300]
Technical Mechanism:
Add or Edit TMOUT value in the /etc/profile file:
TMOUT=300
| CCSS Severity: | CCSS Metrics: |
| CCSS Score : 6.8 | Attack Vector: PHYSICAL |
| Exploit Score: 0.9 | Attack Complexity: LOW |
| Impact Score: 5.9 | Privileges Required: NONE |
| Severity: MEDIUM | User Interaction: NONE |
| Vector: AV:P/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:72664 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:68578 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:72873 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:72767 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:72978 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:72032 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:84272 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:72398 |
