1.5.3 Ensure prelink is not installed

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/3228

Item Details

Category: AUDIT AND ACCOUNTABILITY

References: 800-53|AU-3, CSCv6|3.5, CSCv7|14.9

Plugin: Unix

Control ID: 6a34bf2acfe8fd6f4d68668018af9ab2aec1ff2169cb5a02106de1224f69df3b