[Freeipa-users] weak and null ciphers detected on ldap ports
Murty, Ajeet (US - Arlington)
amurty at deloitte.com
Tue Oct 7 09:35:50 UTC 2014
Hi Martin and Nathan,
Thank you for providing that info.
Unfortunately, my IPA server is running on CentOS, and the latest IPA version available through YUM is - 'ipa-server.i686 3.0.0-37.el6'.
The latest version of 389-DS through YUM is - '389-ds-base.i686 188.8.131.52-34.el6_5 '.
Nessus scan had detected this null cipher -
NULL-SHA Kx=RSA Au=RSA Enc=None Mac=SHA1
I found 2 'dse.ldif' files on disk -
In each of them, I found this -
So to disable null cipher, I removed 'rsa_null_md5' from that list -
I restarted the entire IPA stack, and ran the scan again, I am still seeing that Null Cipher.
Any ideas on how to resolve this?
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From: Martin Kosek [mailto:mkosek at redhat.com]
Sent: Tuesday, September 23, 2014 11:15 AM
To: Nathan Kinder; freeipa-users at redhat.com; Murty, Ajeet (US - Arlington)
Subject: Re: [Freeipa-users] weak and null ciphers detected on ldap ports
On 09/22/2014 10:07 PM, Nathan Kinder wrote:
> On 09/22/2014 05:03 AM, Murty, Ajeet (US - Arlington) wrote:
>> Security scan of FreeIPA server ports uncovered weak, medium and null
>> ciphers on port 389 and 636. We are running 'ipa-server-3.0.0-37.el6.i686'.
>> How can I disable/remove these ciphers in my existing setup?
> This has recently been worked on in this 389-ds-base ticket:
> As mentioned in the initial description of that ticket, you can
> configure the allowed ciphers in the "cn=config" entry in 389-ds-base.
> You can edit this over LDAP, or by stopping 389-ds-base and editing
You can also check the FreeIPA counterpart:
This issue is fixed in FreeIPA 4.0.3 (available in Copr build and Fedora 21+),
we would very much welcome if you can verify that this setup works for you!
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