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Address space layout randomization (ASLR) must be implemented by the SUSE operating system to protect memory from unauthorized code execution.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-234862 | SLES-15-010550 | SV-234862r854208_rule | Medium |
| Description |
|---|
| Some adversaries launch attacks with the intent of executing code in nonexecutable regions of memory or in memory locations that are prohibited. Security safeguards employed to protect memory include, for example, data execution prevention and address space layout randomization. Data execution prevention safeguards can either be hardware-enforced or software-enforced, with hardware providing the greater strength of mechanism. Examples of attacks are buffer overflow attacks. |
| STIG | Date |
|---|---|
| SUSE Linux Enterprise Server 15 Security Technical Implementation Guide | 2024-02-16 |
Details
| Check Text ( C-38050r618855_chk ) |
|---|
| Verify the SUSE operating system implements ASLR. Check that the SUSE operating system implements ASLR by running the following command: > sudo sysctl kernel.randomize_va_space Kernel.randomize_va_space = 2 If the kernel parameter "randomize_va_space" is not equal to "2" or nothing is returned, this is a finding. |
| Fix Text (F-38013r618856_fix) |
|---|
| Configure the SUSE operating system to implement ASLR by running the following command as an administrator: > sudo sysctl -w kernel.randomize_va_space=2 If "2" is not the system's default value, add or update the following line in "/etc/sysctl.d/99-stig.conf": > sudo sh -c 'echo "kernel.randomize_va_space=2" >> /etc/sysctl.d/99-stig.conf' > sudo sysctl --system |