Bug 1153739

Summary:	Disable SSL v3, by default.
Product:	Red Hat Enterprise Linux 6	Reporter:	Noriko Hosoi <nhosoi>
Component:	389-ds-base	Assignee:	Noriko Hosoi <nhosoi>
Status:	CLOSED ERRATA	QA Contact:	Viktor Ashirov <vashirov>
Severity:	high	Docs Contact:
Priority:	high
Version:	6.0	CC:	jgalipea, nkinder, rmeggins, sramling
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	389-ds-base-1.2.11.15-51.el6	Doc Type:	Bug Fix
Doc Text:	Cause: SSL version 3.0 has a known vulnerability. Fix: SSL version 3.0 is disabled, by default. That is, to enable the version, the Directory Server has to be intentionally configured to use SSL version 3.0. Result: The Directory Server is securer.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-07-22 06:35:42 UTC	Type:	---
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:	1154687

Description Noriko Hosoi 2014-10-16 16:51:51 UTC

This bug is created as a clone of upstream ticket:
https://fedorahosted.org/389/ticket/47928

On the new installation, SSL v3 should be disabled by default, and provide the safe cipher suites.

Comment 2 Noriko Hosoi 2015-02-19 23:23:52 UTC

Steps to verify.

Enable SSL with default cn=encryption,cn=config.
That is no "nsSSL3" nor "nsTLS1".

Check the error log and if the SSL version range does not include SSLv3 (e.g., as follows), the fix is verified.
SSL Initialization - SSL version range: min: TLS1.1, max: TLS1.2

You can use logconv.pl, as well.
https://bugzilla.redhat.com/show_bug.cgi?id=1153737#c7

Comment 3 Sankar Ramalingam 2015-03-24 14:51:14 UTC

By default SSLv3 is disabled. However, when I disable TLS1 and enable SSL3, it doesn't throw any error or warning messages.

[root@cloud-qe-15 ~]# ldapsearch -LLL -x -p 1389 -h localhost -D "cn=Directory Manager" -w Secret123 -b "cn=encryption,cn=config"
dn: cn=encryption,cn=config
nsSSL2: off
nsSSL3: off
nsTLS1: on

[root@cloud-qe-15 ~]# ldapmodify -x -p 1389 -h localhost -D "cn=Directory Manager" -w Secret123 << EOF
> dn: cn=encryption,cn=config
> replace: nsSSL3
> nsSSL3: on
> EOF
modifying entry "cn=encryption,cn=config"

[root@cloud-qe-15 ~]# ldapmodify -x -p 1389 -h localhost -D "cn=Directory Manager" -w Secret123 << EOF
dn: cn=encryption,cn=config
replace: nsTLS1
nsTLS1: off
EOF
modifying entry "cn=encryption,cn=config"

[root@cloud-qe-15 ~]# ldapsearch -LLL -x -p 1389 -h localhost -D "cn=Directory Manager" -w Secret123 -b "cn=encryption,cn=config"
dn: cn=encryption,cn=config
nsSSL2: off
nsSSL3: on
nsTLS1: off

Comment 4 errata-xmlrpc 2015-07-22 06:35:42 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://rhn.redhat.com/errata/RHBA-2015-1326.html