Title

RHEL 9 must not have the gssproxy package installed. (Cat II impact)

Discussion

It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore, may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations (e.g., key missions, functions). The gssproxy package is a proxy for GSS API credential handling and could expose secrets on some networks. It is not needed for normal function of the OS. Satisfies: SRG-OS-000095-GPOS-00049, SRG-OS-000480-GPOS-00227

Check Content

Verify that the gssproxy package is not installed with the following command: $ sudo dnf list --installed gssproxy Error: No matching Packages to list If the "gssproxy" package is installed and is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Fix Text

Remove the gssproxy package with the following command: $ sudo dnf remove gssproxy

Additional Identifiers

Rule ID: SV-257832r925483_rule

Vulnerability ID: V-257832

Group Title: SRG-OS-000095-GPOS-00049

Expert Comments

CCIs tied to check.

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