Direct logins must not be permitted to shared, default, application, or utility accounts.

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000770

SV-63187r2_rule Direct logins must not be permitted to shared, default, application, or utility accounts.

Vulnerability discussion

Shared accounts (accounts where two or more people log in with the same user identification) do not provide identification and authentication. There is no way to provide for non-repudiation or individual accountability.

Check content

Use the last command to check for multiple accesses to an account from different workstations/IP addresses. # last -w If users log directly on to accounts, rather than using the switch user (su) command from their own named account to access them, this is a finding (such as logging directly onto oracle). Verify with the SA or the ISSO on documentation for users/administrators to log on to their own accounts first and then switch user (su) to the account to be shared has been maintained, including requirements and procedures. If no such documentation exists, this is a finding.

Fix text

Use the switch user (su) command from a named account login to access shared accounts. Document requirements and procedures for users/administrators to log into their own accounts first and then switch user (su) to the account to be shared.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.