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Bug 1842802 - rpmlint reports crypto-policy-non-compliance-openssl
Summary: rpmlint reports crypto-policy-non-compliance-openssl
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: freeradius
Version: 8.2
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: rc
: 8.0
Assignee: Alex Scheel
QA Contact: ipa-qe
URL:
Whiteboard:
Depends On:
Blocks: 1842847
TreeView+ depends on / blocked
 
Reported: 2020-06-02 07:17 UTC by Ondrej Moriš
Modified: 2022-04-04 23:43 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-06-08 14:22:32 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker FREEIPA-8126 0 None None None 2022-04-04 23:43:24 UTC
Red Hat Issue Tracker RHELPLAN-45246 0 None Closed need assistance with extracting a el9 rpm on el8 (for kickstart) 2022-05-08 19:00:32 UTC

Description Ondrej Moriš 2020-06-02 07:17:08 UTC 
Description of problem:

Crypto-policy non-compliance is reported by rpmlint.

Since RHEL-8.0 we have system-wide crypto policies - usage of cryptographic protocols such as TLS that are enforced system-wide. In general we want all applications in RHEL to be compliant with the crypto policy set on the system (see policy [1] inherited from Fedora).

Rpmlint detected that freeradius-utils uses SSL_CTX_set_cipher_list from OpenSSL library without  PROFILE=SYSTEM. This indicates that a custom setting is used rather than system-wide crypto-policies setting. It is not a problem as long as it is intentional (e.g. specific algorithm is requested by user or configuration). However, unintentional usage might be a potential bug.

Could you please inspect relevant parts of the code, check that this is not rpmlint false positive and verify that custom setting is used intentionally?

 * If yes, feel free to close this BZ as NOT-A-BUG.
 * If not, could you please consider using system-wide crypto policy setting (PROFILE=SYSTEM) instead of custom setting?

[1] https://docs.fedoraproject.org/en-US/packaging-guidelines/CryptoPolicies

Version-Release number of selected component (if applicable):

freeradius-3.0.17-7.module+el8.2.0+4847+336970e8

How reproducible:

100%

Steps to Reproduce:

1. rpmlint freeradius-utils-3.0.17-7.module+el8.2.0+4847+336970e8.x86_64.rpm


Expected results:

No crypto-policy-non-compliance warning.

Actual results:

freeradius-utils.x86_64: W: crypto-policy-non-compliance-openssl /usr/bin/radeapclient SSL_CTX_set_cipher_list
Comment 1 Alex Scheel 2020-06-08 14:22:32 UTC 
Hi Ondrej,

freeradius has a configuration format for specifying ciphers used by the server. This is what calls SSL_CTX_set_cipher_list():

https://github.com/FreeRADIUS/freeradius-server/blob/v3.0.x/src/main/tls.c#L1313
https://github.com/FreeRADIUS/freeradius-server/blob/v3.0.x/src/main/tls.c#L3403-L3411


We've had a patch since 8.0.0 to utilize the PROFILE=SYSTEM directly from the configuration option:

https://src.osci.redhat.com/rpms/freeradius/blob/stream-3.0-rhel-8.0.0/f/freeradius-Use-system-crypto-policy-by-default.patch



I thus believe this to be fine. By default we use crypto-policies, but we allow users to replace this as necessary in their particular case.
Comment 2 Ondrej Moriš 2020-06-08 14:24:29 UTC 
Alex, thank you very much for clarification.
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