Rule ID
SV-258904r933773_rule
Version
V1R1
CCIs
CCI-000366
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.
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.
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.