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Bug 1544143

Summary: ipsec newhostkey fails in FIPS mode when RSA key is generated
Product: Red Hat Enterprise Linux 7 Reporter: Ondrej Moriš <omoris>
Component: libreswanAssignee: Paul Wouters <pwouters>
Status: CLOSED ERRATA QA Contact: Ondrej Moriš <omoris>
Severity: low Docs Contact:
Priority: high    
Version: 7.5CC: jreznik, mgrepl, mthacker, omoris, ravpatil, tmraz
Target Milestone: rcKeywords: Regression, ZStream
Target Release: ---Flags: lcervako: mirror+
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 1573949 (view as bug list) Environment:
Last Closed: 2018-10-30 10:51:34 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:    
Bug Blocks: 1472750, 1573949    

Description Ondrej Moriš 2018-02-10 16:39:05 UTC
Description of problem:

In FIPS mode, comman "ispec newhostkey" fails during HMAC integrity verification when generating RSA key:

# cat /proc/sys/crypto/fips_enabled 
1
# ipsec newhostkey
FIPS HMAC integrity verification test failed.

Apparently, it tries to verify HMAC integrity for rsasigkey binary:

# strace -f ipsec newhostkey
...
[pid 15129] open("/usr/lib64/fipscheck/rsasigkey.hmac", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 15129] open("/usr/libexec/ipsec/.rsasigkey.hmac", O_RDONLY) = -1 ENOENT (No such file or directory)
...

It is because function rsasigkey() in programs/rsasigkey/rsasigkey.c contains the following code:

#ifdef FIPS_CHECK
	if (PK11_IsFIPS() && !FIPSCHECK_verify(NULL, NULL)) {
		fprintf(stderr,
			"FIPS HMAC integrity verification test failed.\n");
		exit(1);
	}
#endif

Since RHEL-7.5 libreswan ships HMAC only for pluto binary and hence aforementioned code is no longer needed.

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

libreswan-3.23-3.el7

How reproducible:

100% (in FIPS mode)

Steps to Reproduce:

1. Enable FIPS mode
2. ipsec initnss
3. ipsec newhostkey

Actual results:

FIPS HMAC integrity verification test failed.

Expected results:

Generated RSA key pair with CKAID ... was stored in the NSS database

Additional info:

 * When FIPS mode is disabled, RSA key is generated correctly.
 * This is not really a regression, since standard tools for key generation
   work in FIPS mode correctly (openssl, NSS, ...).

Comment 10 Paul Wouters 2018-05-02 13:42:56 UTC
*** Bug 1573898 has been marked as a duplicate of this bug. ***

Comment 13 Ondrej Moriš 2018-08-11 10:29:59 UTC
Successfully verified on all supported platforms (RHEL) and architectures (x86_64, ppc64, ppc64le, s390x) in FIPS mode.

# rpm -q libreswan
libreswan-3.25-2.el7.x86_64

# cat /proc/sys/crypto/fips_enabled
1

# ipsec newhostkey --configdir /etc/ipsec.d --output /etc/ipsec.secrets --password "1a2Ikyn0h87OMKS5kNME"'
ipsec newhostkey warning: --configdir is obsoleted, use --nssdir
Generated RSA key pair with CKAID ec7f19d08a7d07f8150712c72f8f253e8c3600e9 was stored in the NSS database

Comment 15 errata-xmlrpc 2018-10-30 10:51:34 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, 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/RHEA-2018:3174