Hi Andrew, I took a look at nsscache, it looks good. In fact, a combination of nsscache and nss_db might be a good solution, but not feasible at the moment.
If I would be able to get a list of users from /etc/passwd with UID greater or equal to 500 without using password_object (this is the one that pulls all information from LDAP) it would be the best solution now. I will continue trying to do it. I would appreciate any hint or someone that confirm that it is not possible. Thanks -- Rodolfo Martínez On Tue, Jun 7, 2016 at 3:50 PM, Andrew Shewmaker <[email protected]> wrote: > A totally different approach to addressing your issue would be to use > nss_db or http://code.google.com/p/nsscache/ to cache LDAP. > > On Tue, May 31, 2016 at 4:43 PM, Rodolfo Martínez <[email protected]> > wrote: > >> Hi List, >> >> After many hours playing with SSG and OpenSCAP and not able to do what >> I want I need some help. >> >> Forgive me if I use SCAP or OpenSCAP terms incorrectly, I am new to >> SSG and I am still getting familiar. >> >> The following OVAL test searches for system accounts (UID < 500) in >> /etc/at.allow (I am showing just the relevant parts of >> RHEL/5/input/oval/at_system_accounts.xml to explain my problem): >> >> <criteria> >> <criterion test_ref="test_at_system_accounts_at_allow" /> >> </criteria> >> >> <unix:password_test check="all" check_existence="none_exist" >> comment="Testing system accounts in /etc/at.allow" >> id="test_at_system_accounts_at_allow" version="1"> >> <unix:object object_ref="object_at_system_accounts_at_allow" /> >> </unix:password_test> >> >> <unix:password_object id="object_at_system_accounts_at_allow" version="1"> >> <unix:username operation="equals" >> var_ref="var_at_system_accounts_allow_list" var_check="at least one" >> datatype="string" /> >> <filter action="include">state_at_system_accounts_at_allow_uid</filter> >> </unix:password_object> >> >> <local_variable id="var_at_system_accounts_allow_list" >> comment="Accounts Allowed" datatype="string" version="1"> >> <object_component item_field="subexpression" >> object_ref="object_at_system_accounts_allow_list" /> >> </local_variable> >> >> <ind:textfilecontent54_object comment="/etc/at.allow" >> id="object_at_system_accounts_allow_list" version="1"> >> <ind:filepath>/etc/at.allow</ind:filepath> >> <ind:pattern operation="pattern match">^(.*)$</ind:pattern> >> <ind:instance operation="greater than or equal" >> datatype="int">0</ind:instance> >> </ind:textfilecontent54_object> >> >> <unix:password_state id="state_at_system_accounts_at_allow_uid" >> version="1"> >> <unix:user_id datatype="int" operation="less than">500</unix:user_id> >> </unix:password_state> >> >> >> The test above gets the users information from the sources specified >> in NSS (/etc/nsswitch.conf) which is correct, however I want to create >> a version that uses /etc/passwd directly. Why? We have many >> (thousands?) of RHEL 5 based servers with LDAP integration, and many >> (thousands?) of accounts in the LDAP servers. >> >> Simple tests like RHEL/5/input/oval/at_system_accounts.xml and >> RHEL/5/input/oval/cron_system_accounts.xml can take hours to run >> because they retrieve *all* users information from the LDAP servers >> and they do it *for each entry* in /etc/at.allow and /etc/cron.allow. >> Also, if we run OpenSCAP (oscap) at the same time in a few servers >> they hit the LDAP servers really bad. >> >> I have been trying to replace password_test and password_object by >> textfilecontent54_test and textfilecontent54_object without any luck. >> If you want, I can share my at_system_accounts.xml file that I thought >> it was going to work. >> >> I would really appreciate any help or hint? >> >> >> Regards >> -- >> Rodolfo Martínez >> -- >> SCAP Security Guide mailing list >> [email protected] >> >> https://lists.fedorahosted.org/admin/lists/[email protected] >> https://github.com/OpenSCAP/scap-security-guide/ >> > > > > -- > Andrew Shewmaker > > -- > SCAP Security Guide mailing list > [email protected] > > https://lists.fedorahosted.org/admin/lists/[email protected] > https://github.com/OpenSCAP/scap-security-guide/ > >
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