1.5.3 Ensure prelink is disabled

Information

prelink is a program that modifies ELF shared libraries and ELF dynamically linked binaries in such a way that the time needed for the dynamic linker to perform relocations at startup significantly decreases.

Rationale:

The prelinking feature can interfere with the operation of AIDE, because it changes binaries. Prelinking can also increase the vulnerability of the system if a malicious user is able to compromise a common library such as libc.

Solution

Run the following command to restore binaries to normal:

# prelink -ua

Uninstall prelink using the appropriate package manager or manual installation:

# apt purge prelink

See Also

https://workbench.cisecurity.org/files/3208

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-7(4), 800-53|CM-7b., CSCv6|3.5

Plugin: Unix

Control ID: 4df8fada9c133bfd677863a5d6c0d52448c76044e54f767aaa7891cd19dc4f36