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The Photon operating system must restrict core dumps.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-258904 | PHTN-40-000246 | SV-258904r933773_rule | Medium |
| Description |
|---|
| By enabling the fs.suid_dumpable kernel parameter, core dumps are not generated for setuid or otherwise protected/tainted binaries. This prevents users from potentially accessing core dumps with privileged information they would otherwise not have access to read. |
| STIG | Date |
|---|---|
| VMware vSphere 8.0 vCenter Appliance Photon OS 4.0 Security Technical Implementation Guide | 2023-10-29 |
Details
| Check Text ( C-62644r933771_chk ) |
|---|
| At the command line, run the following command to verify core dumps are restricted: # /sbin/sysctl fs.suid_dumpable Example result: fs.suid_dumpable = 0 If the "fs.suid_dumpable" kernel parameter is not set to "0", this is a finding. |
| Fix Text (F-62553r933772_fix) |
|---|
| Navigate to and open: /etc/sysctl.d/zz-stig-hardening.conf Add or update the following line: fs.suid_dumpable = 0 At the command line, run the following command to load the new configuration: # /sbin/sysctl --load /etc/sysctl.d/zz-stig-hardening.conf Note: If the file zz-stig-hardening.conf does not exist, it must be created. |