CCE-95083-2| Platform: cpe:/o:ubuntu:ubuntu_linux:20.04, cpe:/o:ubuntu:ubuntu_linux:22.04, cpe:/o:ubuntu:ubuntu_linux:23.04 | Date: (C)2020-10-15 (M)2023-09-01 |
The cramfs filesystem type is a compressed read-only Linux filesystem embedded in small footprint systems. A cramfs image can be used without having to first decompress the image.
Options Explained:
disable - would disable the module.
disable with error logged - would disable the module and log whenever module is inserted.
enable - would enable the module.
Rationale:
Removing support for unneeded filesystem types reduces the local attack surface of the server. If this filesystem type is not needed, disable it.
Fix:
Edit or create the file /etc/modprobe.d/cramfs.conf and add the following line:
install cramfs /bin/true
Parameter:
[disable/disable with error logged/enable]
Technical Mechanism:
Edit or create the file /etc/modprobe.d/cramfs.conf and add the following line:
install cramfs /bin/true
| CCSS Severity: | CCSS Metrics: |
| CCSS Score : 6.1 | Attack Vector: LOCAL |
| Exploit Score: 1.8 | Attack Complexity: LOW |
| Impact Score: 4.2 | Privileges Required: LOW |
| Severity: MEDIUM | User Interaction: NONE |
| Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N | Scope: UNCHANGED |
| | Confidentiality: HIGH |
| | Integrity: LOW |
| | Availability: NONE |
| | |
References: | Resource Id | Reference |
|---|
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:92280 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:85157 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:65994 |
