So Trellix did not accept this as a bug in their healthcheck script.  We put in a RFE with tem to do this healthcheck invocation  using setpriv or su -c.  Which doesn't trigger the LDAP queries.

Now we have an open case with RH Tech Support on this.  Basically, when sudo is invoked as root and we have early in the /etc/sudoers file:

root    ALL=(ALL)       ALL

and then later on in /etc/sudoers file we have:

## Read drop-in files from /etc/sudoers.
#includedir /etc/sudoers.d

then sudo should not be making  group membership queries to enumerate all the various AD groups in /etc/sudoers.d/*  files.  which is triggering multiple LDAP queries on thousands of servers -- all on the hour and half-hour.

Spike

On Fri, Oct 6, 2023 at 12:16 PM Larkin, Patrick <Patrick.Larkin@sabre.com> wrote:

On 10/6/23, 11:52, "Sam Morris" <sam@robots.org.uk> wrote:
______________________________________________________________________
On 04/10/2023 17:02, Spike White wrote:
> We see in other places in this McAfee script that they run this command
> using 'su' instead of 'sudo'.
>
>     su -s /bin/sh -c "LD_LIBRARY_PATH=...  ${PROGROOT}/bin/macmnsvc
>     status" mfe

> Anyway, it's McAfee's problem to fix now.  We'll report it and I'm sure
> they'll figure out a solution.

If they are root and want to drop privileges then they would be better
served by runuser or setpriv. …

 

…or start out as non-root user to begin with…

(It’s a peeve of mine when security companies don’t follow best practice of elevating only if absolutely necessary.)

 

-- 

Pat Larkin | Manager – LinuxIMO

Sabre  TEO | Texas USA

 

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