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Bug 2225222 - Ordering matters for permitted_enctypes
Summary: Ordering matters for permitted_enctypes
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: crypto-policies
Version: 9.3
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Alexander Sosedkin
QA Contact: Ondrej Moriš
Alexandra Nikandrova
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-07-24 16:09 UTC by Alexander Sosedkin
Modified: 2023-11-07 11:26 UTC (History)
4 users (show)

Fixed In Version: crypto-policies-20230731-1.git94f0e2c.el9
Doc Type: Enhancement
Doc Text:
.`crypto-policies` `permitted_enctypes` no longer break replications in FIPS mode Before this update, an IdM server running on RHEL 8 sent an AES-256-HMAC-SHA-1-encrypted service ticket that an IdM replica running RHEL 9 in FIPS mode. Consequently, the default `permitted_enctypes` `krb5` configuration broke a replication between the RHEL 8 IdM server and the RHEL 9 IdM replica in FIPS mode. This update of the system-wide cryptographic policies reorders the `permitted_enctypes` `krb5` configuration option values to allow prioritization of more interoperable encryption types by default. As a result, the `permitted_enctypes` configuration no longer break replications between a RHEL 8 IdM servers and a RHEL 9 IdM replica in FIPS mode. NOTE: If you use Kerberos, verify the order of the values of `permitted_enctypes` in the `/etc/crypto-policies/back-ends/krb5.config` file. If your scenario requires a different order, apply a custom cryptographic subpolicy.
Clone Of:
Environment:
Last Closed: 2023-11-07 08:53:12 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Gitlab redhat-crypto fedora-crypto-policies merge_requests 139 0 None opened [RHEL-9] krb5: sort enctypes mac-first, cipher-second, prioritize SHA-2 ones 2023-07-24 17:16:35 UTC
Red Hat Issue Tracker CRYPTO-11257 0 None None None 2023-07-24 17:01:12 UTC
Red Hat Issue Tracker RHELPLAN-163171 0 None None None 2023-07-24 16:13:12 UTC
Red Hat Issue Tracker RHELPLAN-163172 0 None None None 2023-07-24 16:13:17 UTC
Red Hat Product Errata RHEA-2023:6630 0 None None None 2023-11-07 08:53:22 UTC

Comment 2 Alexander Sosedkin 2023-07-24 17:18:40 UTC
Julien or somebody else from the Kerberos side, could you please review the attached pull-request and doc text?

Comment 13 errata-xmlrpc 2023-11-07 08:53:12 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (crypto-policies bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2023:6630


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