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Bug 2114039 - Current pbkdf2 hardcoded parameters are no longer secure
Summary: Current pbkdf2 hardcoded parameters are no longer secure
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: 389-ds-base
Version: 9.1
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: rc
: 9.2
Assignee: mreynolds
QA Contact: LDAP QA Team
URL:
Whiteboard: sync-to-jira
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-08-02 15:50 UTC by mreynolds
Modified: 2023-05-09 08:50 UTC (History)
4 users (show)

Fixed In Version: 389-ds-base-2.2.4-3.el9
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-05-09 07:41:32 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker IDMDS-2413 0 None None None 2022-08-02 15:58:07 UTC
Red Hat Issue Tracker IDMDS-2712 0 None None None 2023-01-10 13:55:59 UTC
Red Hat Issue Tracker RHELPLAN-129922 0 None None None 2022-08-02 15:58:10 UTC
Red Hat Product Errata RHBA-2023:2274 0 None None None 2023-05-09 07:41:46 UTC

Description mreynolds 2022-08-02 15:50:38 UTC 
Description of problem:

The number of rounds the default storage schemes uses is well below the current recommended minimum (2,048 vs 10,000)

There is a discussion from the upstream ticket going into more detail here:

https://github.com/389ds/389-ds-base/issues/5356

One option is to make the default password storage scheme the Rust one which does use 10,000 rounds but does not suffer from the performance impact that the NSS plugin has:

    cn=PBKDF2-SHA256,cn=Password Storage Schemes,cn=plugins,cn=config (NSS version)

to:
    
    cn=PBKDF2_SHA256,cn=Password Storage Schemes,cn=plugins,cn=config (Rust/openssl version which is much faster)

This would require Rust by default, and might impact other linux distributions.

For older versions of DS (RHEL 8, etc).  We might need to make the PBKDF rounds configurable (non-rust/NSS plugin) so people can bump it up if desired.
Comment 5 Simon Pichugin 2023-02-02 22:28:46 UTC 
The build is tested for both FIPS and non-FIPS mods.

Manually (Password Storage Scheme is used - PBKDF2-SHA512):
# pwdhash SecretPassword389;:
{PBKDF2-SHA512}10000$tg5S0X/NZNHNN8lwEhc4nBxGqgfVSw46$xVb1pYxhuaIGDyfr5+7KEI3pqvMMmKfwrIiC421Vl1bLcAm1PGILyr1Rn77RnZkTbXpxGWEdgK+c+fznmuDlcA==

And with the related CI tests:

===================================================================================== test session starts =====================================================================================
platform linux -- Python 3.9.16, pytest-5.4.3, py-1.11.0, pluggy-0.13.1 -- /usr/bin/python3
cachedir: .pytest_cache
metadata: {'Python': '3.9.16', 'Platform': 'Linux-5.14.0-241.el9.x86_64-x86_64-with-glibc2.34', 'Packages': {'pytest': '5.4.3', 'pluggy': '0.13.1'}, 'Plugins': {'metadata': '2.0.4', 'html': '3.2.0', 'libfaketime': '0.1.2', 'flaky': '3.7.0'}}
389-ds-base: 2.2.4-3.el9
nss: 3.79.0-14.el9_0
nspr: 4.34.0-14.el9_0
openldap: 2.6.2-3.el9
cyrus-sasl: 2.1.27-21.el9
FIPS: disabled
rootdir: /mnt/tests/rhds/tests/upstream/ds/dirsrvtests, inifile: pytest.ini
plugins: metadata-2.0.4, html-3.2.0, libfaketime-0.1.2, flaky-3.7.0
collected 49 items                                                                                                                                                                            

healthcheck/health_security_test.py::test_healthcheck_insecure_pwd_hash_configured PASSED                                                                                               [  2%]
password/pbkdf2_upgrade_plugin_test.py::test_pbkdf2_upgrade PASSED                                                                                                                      [  4%]
password/pwd_algo_test.py::test_pwd_algo_test[CLEAR] PASSED                                                                                                                             [  6%]
password/pwd_algo_test.py::test_pwd_algo_test[CRYPT] PASSED                                                                                                                             [  8%]
password/pwd_algo_test.py::test_pwd_algo_test[CRYPT-MD5] PASSED                                                                                                                         [ 10%]
password/pwd_algo_test.py::test_pwd_algo_test[CRYPT-SHA256] PASSED                                                                                                                      [ 12%]
password/pwd_algo_test.py::test_pwd_algo_test[CRYPT-SHA512] PASSED                                                                                                                      [ 14%]
password/pwd_algo_test.py::test_pwd_algo_test[MD5] PASSED                                                                                                                               [ 16%]
password/pwd_algo_test.py::test_pwd_algo_test[SHA] PASSED                                                                                                                               [ 18%]
password/pwd_algo_test.py::test_pwd_algo_test[SHA256] PASSED                                                                                                                            [ 20%]
password/pwd_algo_test.py::test_pwd_algo_test[SHA384] PASSED                                                                                                                            [ 22%]
password/pwd_algo_test.py::test_pwd_algo_test[SHA512] PASSED                                                                                                                            [ 24%]
password/pwd_algo_test.py::test_pwd_algo_test[SMD5] PASSED                                                                                                                              [ 26%]
password/pwd_algo_test.py::test_pwd_algo_test[SSHA] PASSED                                                                                                                              [ 28%]
password/pwd_algo_test.py::test_pwd_algo_test[SSHA256] PASSED                                                                                                                           [ 30%]
password/pwd_algo_test.py::test_pwd_algo_test[SSHA384] PASSED                                                                                                                           [ 32%]
password/pwd_algo_test.py::test_pwd_algo_test[SSHA512] PASSED                                                                                                                           [ 34%]
password/pwd_algo_test.py::test_pwd_algo_test[PBKDF2_SHA256] PASSED                                                                                                                     [ 36%]
password/pwd_algo_test.py::test_pwd_algo_test[DEFAULT] PASSED                                                                                                                           [ 38%]
password/pwd_algo_test.py::test_pwd_algo_test[PBKDF2-SHA1] PASSED                                                                                                                       [ 40%]
password/pwd_algo_test.py::test_pwd_algo_test[PBKDF2-SHA256] PASSED                                                                                                                     [ 42%]
password/pwd_algo_test.py::test_pwd_algo_test[PBKDF2-SHA512] PASSED                                                                                                                     [ 44%]
password/pwd_algo_test.py::test_pwd_algo_test[GOST_YESCRYPT] PASSED                                                                                                                     [ 46%]
password/pwd_algo_test.py::test_pbkdf2_algo PASSED                                                                                                                                      [ 48%]
password/pwd_upgrade_on_bind_test.py::test_password_hash_on_upgrade PASSED                                                                                                              [ 51%]
password/pwd_upgrade_on_bind_test.py::test_password_hash_on_upgrade_clearcrypt PASSED                                                                                                   [ 53%]
password/pwd_upgrade_on_bind_test.py::test_password_hash_on_upgrade_disable PASSED                                                                                                      [ 55%]
password/pwp_test.py::test_passwordchange_to_no PASSED                                                                                                                                  [ 57%]
password/pwp_test.py::test_password_check_syntax PASSED                                                                                                                                 [ 59%]
password/pwp_test.py::test_too_big_password PASSED                                                                                                                                      [ 61%]
password/pwp_test.py::test_pwminage PASSED                                                                                                                                              [ 63%]
password/pwp_test.py::test_invalid_credentials PASSED                                                                                                                                   [ 65%]
password/pwp_test.py::test_expiration_date PASSED                                                                                                                                       [ 67%]
password/pwp_test.py::test_passwordlockout PASSED                                                                                                                                       [ 69%]
pwp_storage/storage_test.py::test_check_password_scheme[CRYPT] PASSED                                                                                                                   [ 71%]
pwp_storage/storage_test.py::test_check_password_scheme[SHA] PASSED                                                                                                                     [ 73%]
pwp_storage/storage_test.py::test_check_password_scheme[SSHA] PASSED                                                                                                                    [ 75%]
pwp_storage/storage_test.py::test_check_password_scheme[SHA256] PASSED                                                                                                                  [ 77%]
pwp_storage/storage_test.py::test_check_password_scheme[SSHA256] PASSED                                                                                                                 [ 79%]
pwp_storage/storage_test.py::test_check_password_scheme[SHA384] PASSED                                                                                                                  [ 81%]
pwp_storage/storage_test.py::test_check_password_scheme[SSHA384] PASSED                                                                                                                 [ 83%]
pwp_storage/storage_test.py::test_check_password_scheme[SHA512] PASSED                                                                                                                  [ 85%]
pwp_storage/storage_test.py::test_check_password_scheme[SSHA512] PASSED                                                                                                                 [ 87%]
pwp_storage/storage_test.py::test_check_password_scheme[MD5] PASSED                                                                                                                     [ 89%]
pwp_storage/storage_test.py::test_check_password_scheme[PBKDF2_SHA256] PASSED                                                                                                           [ 91%]
pwp_storage/storage_test.py::test_clear_scheme PASSED                                                                                                                                   [ 93%]
pwp_storage/storage_test.py::test_check_two_scheme PASSED                                                                                                                               [ 95%]
pwp_storage/storage_test.py::test_check_pbkdf2_sha256 PASSED                                                                                                                            [ 97%]
pwp_storage/storage_test.py::test_check_ssha512 PASSED                                                                                                                                  [100%]
========================================================================= 49 passed in 185.04s (0:03:05) =========================================================================

Marking as Verified: Tested.
Comment 7 Simon Pichugin 2023-02-02 23:22:26 UTC 
As per comment #c5, marking as VERIFIED.
Comment 9 errata-xmlrpc 2023-05-09 07:41:32 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 (389-ds-base 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/RHBA-2023:2274
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