Title

The root account's list of preloaded libraries must be empty. (Cat II impact)

Discussion

The library preload list environment variable contains a list of libraries for the dynamic linker to load before loading the libraries required by the binary. If this list contains paths to libraries relative to the current working directory, unintended libraries may be preloaded. This variable is formatted as a space-separated list of libraries. Paths starting with (/) are absolute paths.

Check Content

Verify the LD_PRELOAD environment variable is empty or not defined for the root user. # echo $LD_PRELOAD If a path list is returned, this is a finding.

Fix Text

Edit the root user initialization files and remove any definition of LD_PRELOAD.

Additional Identifiers

Rule ID: SV-38308r1_rule

Vulnerability ID: V-22311

Group Title: GEN000950

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.