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1.5.3 Ensure address space layout randomization (ASLR) is enabled

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Information

Address space layout randomization (ASLR) is an exploit mitigation technique which randomly arranges the address space of key data areas of a process. Randomly placing virtual memory regions will make it difficult to write memory page exploits as the memory placement will be consistently shifting.

Solution

Set the following parameter in the /etc/sysctl.conf file: kernel.randomize_va_space = 2 Run the following command to set the active kernel parameter: # sysctl -w kernel.randomize_va_space=2

See Also

https://benchmarks.cisecurity.org/tools2/linux/CIS_Ubuntu_Linux_14.04_LTS_Benchmark_v2.0.0.pdf

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6, CSCv6|3.1

Plugin: Unix

Control ID: a8c24af5f5bdd7ecbffac151af4c0d49ed7cfb93c3196b21a1867cf3e0ee152f