| name | cis-ubuntu1604-v200-1-1-9 |
| description | Ensure noexec option set on /dev/shm partition |
| category | cis-storage |
| version | 2.0.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu","linux","ubuntu-16.04","filesystem","dev-shm","noexec","mount-option"] |
| cis_id | 1.1.9 |
| cis_benchmark | CIS Ubuntu Linux 16.04 LTS Benchmark v2.0.0 |
| tech_stack | ["ubuntu","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
Ensure noexec option set on /dev/shm partition
Description
The noexec mount option specifies that the filesystem cannot contain executable binaries.
Rationale
Setting this option on a file system prevents users from executing programs from shared memory. This deters users from introducing potentially malicious software on the system.
Impact
None noted.
Audit Procedure
Command Line
findmnt -n /dev/shm | grep -v noexec
Expected Result
No output should be returned.
Remediation
Command Line
mount -o remount,nosuid,nodev,noexec /dev/shm
Default Value
Not set by default.
References
- CIS Controls Version 7 - 2.6 Address unapproved software: Ensure that unauthorized software is either removed or the inventory is updated in a timely manner.
Profile
Level 1 - Server / Level 1 - Workstation, Assessment: Automated