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Description of problem:
RHEL 9.0 has obsoleted SHA-1 signatures. named is configured via crypto-policies package to disable RSASHA1 and NSEC3RSASHA1 algorithms (bug #2070230). delv tool from bind-utils validates using the same algorithm, but does not read any configuration file. It has no way to disable algorithms from command line or configuration file, even a custom one. It should modify named code to be able to test availability of SHA1 signatures.
Might need also ED25519 and ED448 algorithms detection in FIPS mode.
Version-Release number of selected component (if applicable):
bind-utils-9.16.23-1.el9.x86_64
crypto-policies-20220223-1.git5203b41.el9_0.1.noarch
How reproducible:
reliable
Steps to Reproduce:
1. delv int
2.
3.
Actual results:
# delv int
;; EVP_VerifyFinal failed (verify failure)
;; error:03000098:digital envelope routines::invalid digest:crypto/evp/pmeth_lib.c:959:
;; EVP_VerifyFinal failed (verify failure)
;; error:03000098:digital envelope routines::invalid digest:crypto/evp/pmeth_lib.c:959:
;; validating int/DNSKEY: no valid signature found
;; insecurity proof failed resolving 'int/DNSKEY/IN': 10.2.32.1#53
;; validating rtma1k8jfek31ikuajq7rie9dufhe33b.int/NSEC3: bad cache hit (int/DNSKEY)
;; broken trust chain resolving 'int/A/IN': 10.2.32.1#53
;; resolution failed: broken trust chain
Expected results:
# delv int
;; resolution failed: ncache nxrrset
; negative response, fully validated
; int. 3408 IN \-A ;-$NXRRSET
; int. SOA sns.dns.icann.org. noc.dns.icann.org. 2022040623 3600 1800 604800 3600
; int. RRSIG SOA ...
; rtma1k8jfek31ikuajq7rie9dufhe33b.int. RRSIG NSEC3 ...
; rtma1k8jfek31ikuajq7rie9dufhe33b.int. NSEC3 1 0 5 398954BBB503FF9D S2BQ3UEQJHSGU7FE7M8QPQ563E9PTFH5 NS SOA RRSIG DNSKEY NSEC3PARAM
or insecure, but successful reply.
Additional info:
Marking as future feature, even when it is sort of regression compared to RHEL 8. But such behaviour does not exist in upstream and fresh new code is required as a workaround.
Comment 5RHEL Program Management
2023-09-21 17:51:30 UTC
Issue migration from Bugzilla to Jira is in process at this time. This will be the last message in Jira copied from the Bugzilla bug.
Comment 6RHEL Program Management
2023-09-21 17:55:27 UTC
This BZ has been automatically migrated to the issues.redhat.com Red Hat Issue Tracker. All future work related to this report will be managed there.
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