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Bug 1869683 - p11_child: default value of ocsp_dgst == sha256 doesn't conform RFC5019 and has to be changed to SHA-1
Summary: p11_child: default value of ocsp_dgst == sha256 doesn't conform RFC5019 and ...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: sssd
Version: 8.2
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Alexey Tikhonov
QA Contact: sssd-qe
URL:
Whiteboard: sync-to-jira
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-08-18 13:36 UTC by Alexey Tikhonov
Modified: 2020-11-04 02:09 UTC (History)
8 users (show)

Fixed In Version: sssd-2.3.0-8.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-11-04 02:05:29 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Github SSSD sssd issues 5002 0 None closed p11_child::do_ocsp() function implementation is not FIPS140 compliant 2021-01-14 09:26:31 UTC
Red Hat Product Errata RHBA-2020:4569 0 None None None 2020-11-04 02:05:42 UTC

Description Alexey Tikhonov 2020-08-18 13:36:22 UTC 
The change of default OCSP digest to SHA256 introduced in bz 1718478 breaks out of the box(*) compatibility with RFC5019 compliant OCSP responders.

*) while it's possible to configure SHA-1 explicitly, this is not very handy (for example see bz 1834664)


Moreover, as discussed at https://github.com/SSSD/sssd/pull/837#issuecomment-672831519 , SHA-1 used in this context *is* FIPS140 compliant.


So the default should be changed back to SHA-1.
Comment 1 Alexey Tikhonov 2020-08-18 13:38:42 UTC 
Upstream PR: https://github.com/SSSD/sssd/pull/5280
Comment 3 Pavel Březina 2020-08-21 08:51:00 UTC 
Pushed PR: https://github.com/SSSD/sssd/pull/5280

* `master`
    * 10366b4ee8c01ea20d908102e92d52fdeda168c3 - p11_child: switch default ocsp_dgst to sha1
Comment 6 Scott Poore 2020-08-24 16:34:02 UTC 
Verified after correcting automated tests 0001 and 0006 to expect SHA-1 instead of sha256.

Version ::

sssd-2.3.0-8.el8.x86_64

Results ::

=================== test_0001 ====================

FUNCTION: add_sssd_cfg
Created SSSD Config:
SSSD Config File name:  /etc/sssd/conf.d/sssd_ocsp.conf
SSSD Settings:
[sssd]

METHOD: MyTshark.start: 

Running tshark at pid 39957
FUNCTION: wait_for_user
FOUND USER: ipauser1
uid=103000031(ipauser1) gid=103000031(ipauser1) groups=103000031(ipauser1)


0
Sat Aug 22 12:59:37 CDT 2020

['expect', '-f', '/tmp/ipa_sc_test.d/66sSBH4p3D.exp']
spawn su - ipauser1 -c su - ipauser1 -c "echo success > /tmp/ipa_sc_test.d/ZBEM2U6JVP.output"
PIN for MyEID (sctest): 


METHOD: MyTshark.stop: 

Killing pid 39957
METHOD: MyTshark.search: 

ocsp hashAlgorithm SHA-1 2
FOUND:                     hashAlgorithm (SHA-1)
FOUND:                             hashAlgorithm (SHA-1)
PASSED
test_4001_misc.py::TestSssdOcspDigest::test_0002 
=================== test_0002 ====================

FUNCTION: add_sssd_cfg
Created SSSD Config:
SSSD Config File name:  /etc/sssd/conf.d/sssd_ocsp.conf
SSSD Settings:
[sssd]
certificate_verification = ocsp_dgst=sha256

METHOD: MyTshark.start: 

Running tshark at pid 40326
FUNCTION: wait_for_user
FOUND USER: ipauser1
uid=103000031(ipauser1) gid=103000031(ipauser1) groups=103000031(ipauser1)


0
Sat Aug 22 13:00:12 CDT 2020

['expect', '-f', '/tmp/ipa_sc_test.d/KUfmX0FS6i.exp']
spawn su - ipauser1 -c su - ipauser1 -c "echo success > /tmp/ipa_sc_test.d/0FQUC6MEPK.output"
PIN for MyEID (sctest): 


METHOD: MyTshark.stop: 

Killing pid 40326
METHOD: MyTshark.search: 

ocsp hashAlgorithm sha256 2
FOUND:                     hashAlgorithm (sha256)
FOUND:                             hashAlgorithm (sha256)
PASSED
test_4001_misc.py::TestSssdOcspDigest::test_0003 
=================== test_0003 ====================

FUNCTION: add_sssd_cfg
Created SSSD Config:
SSSD Config File name:  /etc/sssd/conf.d/sssd_ocsp.conf
SSSD Settings:
[sssd]
certificate_verification = ocsp_dgst=sha384

METHOD: MyTshark.start: 

Running tshark at pid 40698
FUNCTION: wait_for_user
FOUND USER: ipauser1
uid=103000031(ipauser1) gid=103000031(ipauser1) groups=103000031(ipauser1)


0
Sat Aug 22 13:00:46 CDT 2020

['expect', '-f', '/tmp/ipa_sc_test.d/Wq1B3yvIGr.exp']
spawn su - ipauser1 -c su - ipauser1 -c "echo success > /tmp/ipa_sc_test.d/C9C26N9CSF.output"
PIN for MyEID (sctest): 


METHOD: MyTshark.stop: 

Killing pid 40698
METHOD: MyTshark.search: 

ocsp hashAlgorithm sha384 2
FOUND:                     hashAlgorithm (sha384)
FOUND:                             hashAlgorithm (sha384)
PASSED
test_4001_misc.py::TestSssdOcspDigest::test_0004 
=================== test_0004 ====================

FUNCTION: add_sssd_cfg
Created SSSD Config:
SSSD Config File name:  /etc/sssd/conf.d/sssd_ocsp.conf
SSSD Settings:
[sssd]
certificate_verification = ocsp_dgst=sha512

METHOD: MyTshark.start: 

Running tshark at pid 41081
FUNCTION: wait_for_user
FOUND USER: ipauser1
uid=103000031(ipauser1) gid=103000031(ipauser1) groups=103000031(ipauser1)


0
Sat Aug 22 13:01:19 CDT 2020

['expect', '-f', '/tmp/ipa_sc_test.d/Zhu3VOAQ63.exp']
spawn su - ipauser1 -c su - ipauser1 -c "echo success > /tmp/ipa_sc_test.d/KQJMNGDDTD.output"
PIN for MyEID (sctest): 


METHOD: MyTshark.stop: 

Killing pid 41081
METHOD: MyTshark.search: 

ocsp hashAlgorithm sha512 2
FOUND:                     hashAlgorithm (sha512)
FOUND:                             hashAlgorithm (sha512)
PASSED
test_4001_misc.py::TestSssdOcspDigest::test_0005 
=================== test_0005 ====================

FUNCTION: add_sssd_cfg
Created SSSD Config:
SSSD Config File name:  /etc/sssd/conf.d/sssd_ocsp.conf
SSSD Settings:
[sssd]
certificate_verification = ocsp_dgst=sha1

METHOD: MyTshark.start: 

Running tshark at pid 41451
FUNCTION: wait_for_user
FOUND USER: ipauser1
uid=103000031(ipauser1) gid=103000031(ipauser1) groups=103000031(ipauser1)


0
Sat Aug 22 13:01:53 CDT 2020

['expect', '-f', '/tmp/ipa_sc_test.d/WRobXR1FBm.exp']
spawn su - ipauser1 -c su - ipauser1 -c "echo success > /tmp/ipa_sc_test.d/SNBJ3L5CP1.output"
PIN for MyEID (sctest): 


METHOD: MyTshark.stop: 

Killing pid 41451
METHOD: MyTshark.search: 

ocsp hashAlgorithm SHA-1 2
FOUND:                     hashAlgorithm (SHA-1)
FOUND:                             hashAlgorithm (SHA-1)
PASSED
test_4001_misc.py::TestSssdOcspDigest::test_0006 
=================== test_0006 ====================

FUNCTION: add_sssd_cfg
Created SSSD Config:
SSSD Config File name:  /etc/sssd/conf.d/sssd_ocsp.conf
SSSD Settings:
[sssd]
certificate_verification = ocsp_dgst=bad256

METHOD: MyTshark.start: 

Running tshark at pid 41821
FUNCTION: wait_for_user
FOUND USER: ipauser1
uid=103000031(ipauser1) gid=103000031(ipauser1) groups=103000031(ipauser1)


0
Sat Aug 22 13:02:26 CDT 2020

['expect', '-f', '/tmp/ipa_sc_test.d/hEawnFJvnh.exp']
spawn su - ipauser1 -c su - ipauser1 -c "echo success > /tmp/ipa_sc_test.d/CPR3LJGUM7.output"
PIN for MyEID (sctest): 


METHOD: MyTshark.stop: 

Killing pid 41821
METHOD: MyTshark.search: 

ocsp hashAlgorithm SHA-1 2
FOUND:                     hashAlgorithm (SHA-1)
FOUND:                             hashAlgorithm (SHA-1)
PASSED
session_teardown


=========================================================== 6 passed in 290.08 seconds ============================================================
Comment 9 errata-xmlrpc 2020-11-04 02:05:29 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 (sssd 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-2020:4569
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