Bug 2160797

Summary:	openssl smime and cms commands default to 3DES and PKCS#1v1.5 encryption in FIPS mode
Product:	Red Hat Enterprise Linux 9	Reporter:	Alicja Kario <hkario>
Component:	openssl	Assignee:	Dmitry Belyavskiy <dbelyavs>
Status:	CLOSED ERRATA	QA Contact:	Alicja Kario <hkario>
Severity:	low	Docs Contact:	Petr Hybl <phybl>
Priority:	low
Version:	9.0	CC:	cllang, dbelyavs, jafiala
Target Milestone:	rc	Keywords:	Triaged
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	openssl-3.0.7-18.el9	Doc Type:	Bug Fix
Doc Text:	.OpenSSL commands `cms` and `smime` can encrypt files in FIPS mode Previously, the default configuration of the `cms` and `smime` OpenSSL commands used legacy encryption algorithms, such as 3DES or PKCS #1 v1.5. These algorithms are disabled in FIPS mode. As a result, encrypting files by using the `smime` command with the default settings did not work on systems in FIPS mode. This update introduces the following changes: * In FIPS mode, OpenSSL APIs create CMS data by using OAEP with RSA keys by default. * In FIPS mode, the `cms` OpenSSL command creates CMS files encrypted with `aes-128-cbc` and OAEP when provided RSA keys. The use of ECDSA keys is unaffected. In non-FIPS mode, OpenSSL APIs and the `cms` command continue to use PKCS#1 v1.5 padding and 3DES encryption by default. As a consequence, you can use the `cms` and `smime` OpenSSL commands in FIPS mode to encrypt files.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-11-07 08:52:59 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:

Description Alicja Kario 2023-01-13 18:14:09 UTC

Description of problem:
When the openssl smime command is used to encrypt email in FIPS mode, it still uses 3DES. Since that algorithm is not allowed in FIPS mode, the operation fails.

Version-Release number of selected component (if applicable):
openssl-3.0.7-2.el9.x86_64

How reproducible:
always

Steps to Reproduce:
Steps to Reproduce:
1. wget https://raw.githubusercontent.com/redhat-qe-security/certgen/master/certgen/lib.sh
2. source lib.sh
3. x509KeyGen ca
4. x509KeyGen client
5. x509SelfSign ca
6. x509CertSign --CA ca -t webclient client
7. echo 'Hello world' > message.txt
8. openssl smime -encrypt -in message.txt -out message.enc client/cert.pem

Actual results:
Error creating PKCS#7 structure
408C0F8F017F0000:error:0308010C:digital envelope routines:inner_evp_generic_fetch:unsupported:crypto/evp/evp_fetch.c:373:Global default library context, Algorithm (DES-EDE3-CBC : 27), Properties ()
408C0F8F017F0000:error:108C0100:PKCS7 routines:PKCS7_final:malloc failure:crypto/pkcs7/pk7_smime.c:80:

Expected results:
Email encrypted with an AES cipher and RSA-OAEP

Additional info:

setting -aes128 explicitly doesn't help as (I'm assuming) it's trying to use PKCS#1 v1.5 encryption with the provided RSA key, instead of RSA-OEAP:

Error creating PKCS#7 structure
40ACB4D62A7F0000:error:1C8000A5:Provider routines:rsa_encrypt:illegal or unsupported padding mode:providers/implementations/asymciphers/rsa_enc.c:163:
40ACB4D62A7F0000:error:108C0100:PKCS7 routines:PKCS7_final:malloc failure:crypto/pkcs7/pk7_smime.c:80:

Comment 1 Alicja Kario 2023-01-13 19:52:07 UTC

Same issue for cms command:

# openssl cms -encrypt -in message.txt -out message.enc client/cert.pem

403C7406297F0000:error:0308010C:digital envelope routines:inner_evp_generic_fetch:unsupported:crypto/evp/evp_fetch.c:373:Global default library context, Algorithm (DES-EDE3-CBC : 27), Properties ()
403C7406297F0000:error:17000065:CMS routines:ossl_cms_EncryptedContent_init_bio:cipher initialisation error:crypto/cms/cms_enc.c:78:
403C7406297F0000:error:17000068:CMS routines:CMS_final:cms lib:crypto/cms/cms_smime.c:882:


# openssl cms -encrypt -in message.txt -out message.enc -aes128 client/cert.pem

404C8805B77F0000:error:1C8000A5:Provider routines:rsa_encrypt:illegal or unsupported padding mode:providers/implementations/asymciphers/rsa_enc.c:163:
404C8805B77F0000:error:17000074:CMS routines:cms_EnvelopedData_Encryption_init_bio:error setting recipientinfo:crypto/cms/cms_env.c:1142:
404C8805B77F0000:error:17000068:CMS routines:CMS_final:cms lib:crypto/cms/cms_smime.c:882:

Comment 32 errata-xmlrpc 2023-11-07 08:52:59 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 (openssl 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-2023:6627