Bug 2092503

Summary:	FIPS compliance of signature APIs used by OpenSSH [rhel-8]
Product:	Red Hat Enterprise Linux 8	Reporter:	Hubert Kario <hkario>
Component:	openssh	Assignee:	Norbert Pócs <npocs>
Status:	CLOSED WONTFIX	QA Contact:	Marek Havrila <mhavrila>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	8.6	CC:	cllang, dbelyavs, jjelen, npocs, qe-baseos-security
Target Milestone:	rc	Keywords:	Reopened, Triaged
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	2091694	Environment:
Last Closed:	2023-05-30 07:28:23 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2091694
Bug Blocks:

Description Hubert Kario 2022-06-01 17:14:23 UTC

+++ This bug was initially created as a clone of Bug #2091694 +++

Description of problem:
OpenSSH uses the EVP_Sign* and EVP_Verify* APIs for signature generation and verification. Unfortunately the only FIPS compliant APIs for signature generation and verification are the EVP_DigestSign* and EVP_DigestVerify* APIs.

Version-Release number of selected component (if applicable):
openssh-8.0p1-13.el8

How reproducible:
always

Steps to Reproduce:
1. inspect sources or run with openssl version that disables the non-FIPS compliant APIs

Actual results:
non compliant APIs used

Expected results:
only compliant APIs used

Additional info:

Comment 6 Dmitry Belyavskiy 2022-12-09 13:13:43 UTC

What should be done:
In the function sshkey_calculate_signature/sshkey_verify_signature we should use the DigestSignInit/Update/Final API

ECDSA_do_sign/verify calls should be eliminated from both SSH and ssh_pam (leave just in sk-dummy.c)

DH/ECDH key exchanges should be rewritten to use EVP_PKEY API

Comment 7 Dmitry Belyavskiy 2022-12-09 18:23:29 UTC

After the discussion, we don't have to switch to DigestSignInit/Update/Final API in RHEL8

Comment 9 RHEL Program Management 2023-05-30 07:28:23 UTC

After evaluating this issue, there are no plans to address it further or fix it in an upcoming release.  Therefore, it is being closed.  If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.