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The Oracle REMOTE_OS_ROLES parameter must be set to FALSE.


Finding ID Version Rule ID IA Controls Severity
V-219831 O121-BP-022000 SV-219831r533034_rule High
Setting REMOTE_OS_ROLES to TRUE allows operating system groups to control Oracle roles. The default value of FALSE causes roles to be identified and managed by the database. If REMOTE_OS_ROLES is set to TRUE, a remote user could impersonate another operating system user over a network connection.
Oracle Database 12c Security Technical Implementation Guide 2022-06-13


Check Text ( C-21542r533032_chk )
From SQL*Plus:

select value from v$parameter where name = 'remote_os_roles';

If the returned value is not FALSE or not documented in the System Security Plan as required, this is a finding.
Fix Text (F-21541r533033_fix)
Document remote OS roles in the System Security Plan.

If not required, disable use of remote OS roles.

From SQL*Plus:

alter system set remote_os_roles = FALSE scope = spfile;

The above SQL*Plus command will set the parameter to take effect at next system startup.