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SLEM-05-432010 - SLEM 5 must use the invoking user's password for privilege escalation when using "sudo".

Information

The sudoers security policy requires that users authenticate themselves before they can use sudo. When sudoers requires authentication, it validates the invoking user's credentials. If the rootpw, targetpw, or runaspw flags are defined and not disabled, by default the operating system will prompt the invoking user for the "root" user password.

For more information on each of the listed configurations, reference the sudoers(5) manual page.

Solution

Configure the sudoers security policy to use the invoking user's password for privilege escalation.

Define the defaults in a configuration file in the /etc/sudoers.d/ directory with the following command and entries:

 > sudo visudo -f /etc/sudoers.d/hardening_defaults

Defaults !targetpw
Defaults !rootpw
Defaults !runaspw

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_SLEM_5_V1R4_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-261372r1184420_rule, STIG-ID|SLEM-05-432010, Vuln-ID|V-261372

Plugin: Unix

Control ID: 7fcc6f6663b72599148f1e93a71e2a61f0e87fe6c448ef83cfe5e677c168c01e