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Status Submitted
Workspace AIX
Created by Guest
Created on Nov 29, 2024

RELATED IDEAS

Mitigate security risk VOLATILE TE - tsd entries after efix installation

Why is this necessary?

After applying an efix (for example security fixes) the TE (Trusted Execution) tsd.dat is modified and stanza are replace with keyword VOLATILE.

This happens for the replaced binaries (executables) and libraries, that were replaced via those efix(es).

However: The replaced (temporary) fixed binaries and libraries are not added with the right certtag and/or signature and hash_value in the tsd database for trustchk, but all replaced with type VOLATILE.  

 

Security risk: After replacing the tsd.dat stanza’s entries with type VOLATILE. The replace binaries and / or libraries, are now vulnerable. See example below.

In other words after applying a efix, we can no longer proof that the replaced binaries / or libraries are created and approved by IBM.

Also we cannot deliver evidence to our auditors that those binaries / libraries are save and not modified after installation.

 

Desired solution: Provide for every efix the right updates into the tsd.dat database.

Similar to a normal lpp update.

Idea priority Medium

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