Script to check security level on RHEL6 Based on CIS security benchmark and RedHat security best practices :
https://benchmarks.cisecurity.org/tools2/linux/CIS_Red_Hat_Enterprise_Linux_6_Benchmark_v1.2.0.pdf https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/pdf/Security_Guide/Red_Hat_Enterprise_Linux-6-Security_Guide-en-US.pdf
based also on (for RHEL5) : http://www.nsa.gov/ia/_files/os/redhat/NSA_RHEL_5_GUIDE_v4.2.pdf
It also contains a part10 which is specific stuff for my company