[Freeipa-users] weak and null ciphers detected on ldap ports
Rich Megginson
rmeggins at redhat.com
Wed Oct 8 04:36:37 UTC 2014
On 10/07/2014 10:15 PM, Murty, Ajeet (US - Arlington) wrote:
> Any ideas on what else I can try here?
Please file a ticket.
> Also, can we expect the new IPA and DS to be available in the CentOS/YUM repository in the next few weeks/months?
>
> Thanks again for all your help.
>
>
> -----Original Message-----
> From: freeipa-users-bounces at redhat.com [mailto:freeipa-users-bounces at redhat.com] On Behalf Of Murty, Ajeet (US - Arlington)
> Sent: Tuesday, October 07, 2014 1:21 PM
> To: Alexander Bokovoy
> Cc: freeipa-users at redhat.com
> Subject: Re: [Freeipa-users] weak and null ciphers detected on ldap ports
>
> I removed the new lines, looks like this now -
>
> modifyTimestamp: 20140915221826Z
> nsSSL3Ciphers: -rsa_null_md5,+rsa_rc4_128_md5,+rsa_rc4_40_md5,+rsa_rc2_40_md5,
> +rsa_des_sha,+rsa_fips_des_sha,+rsa_3des_sha,+rsa_fips_3des_sha,+fortezza,+fo
> rtezza_rc4_128_sha,-fortezza_null,+tls_rsa_export1024_with_rc4_56_sha,+tls_rs
> a_export1024_with_des_cbc_sha
> numSubordinates: 1
>
> I am still seeing the null ciphers in my scan results.
>
>
>
> -----Original Message-----
> From: Alexander Bokovoy [mailto:abokovoy at redhat.com]
> Sent: Tuesday, October 07, 2014 1:08 PM
> To: Murty, Ajeet (US - Arlington)
> Cc: Rob Crittenden; Rich Megginson; freeipa-users at redhat.com
> Subject: Re: [Freeipa-users] weak and null ciphers detected on ldap ports
>
> On Tue, 07 Oct 2014, Murty, Ajeet (US - Arlington) wrote:
>> I shutdown IPA and modified both dse ldif files to look like this -
>>
>> nsSSL3Ciphers: -rsa_null_md5,+rsa_rc4_128_md5,+rsa_rc4_40_md5,+rsa_rc2_40_md5,
>> +rsa_des_sha,+rsa_fips_des_sha,+rsa_3des_sha,+rsa_fips_3des_sha,+fortezza,+fo
>> rtezza_rc4_128_sha,-fortezza_null,+tls_rsa_export1024_with_rc4_56_sha,+tls_rs
>> a_export1024_with_des_cbc_sha
>>
>>
>> Then, when I try to start up IPA, I get this error message -
>>
>> [root]# /etc/init.d/ipa start
>> Starting Directory Service
>> Starting dirsrv:
>> EXAMPLE-COM...[07/Oct/2014:12:49:59 -0400] - str2entry_dupcheck: entry has no dn
>> [07/Oct/2014:12:49:59 -0400] - The entry [nsSSL3Ciphers] in the configfile /etc/dirsrv/slapd-EXAMPLE-COM/dse.ldif was empty or could not be parsed
>> [07/Oct/2014:12:49:59 -0400] - str2entry_dupcheck: entry has no dn
> The lines above suggest that you actually separated nsSSL3Ciphers line
> from the entry itself. At least in my case it looks like this:
>
> dn: cn=encryption,cn=config
> objectClass: top
> objectClass: nsEncryptionConfig
> cn: encryption
> nsSSLSessionTimeout: 0
> nsSSLClientAuth: allowed
> nsSSL2: off
> nsSSL3: off
> creatorsName: cn=server,cn=plugins,cn=config
> modifiersName: cn=directory manager
> createTimestamp: 20141001151245Z
> modifyTimestamp: 20141001151430Z
> nsSSL3Ciphers: +all
> allowWeakCipher: off
> numSubordinates: 1
>
> note that it is part of cn=encryption,cn=config entry. You cannot
> separate attributes within the entry with empty lines because empty line
> finishes current entry and starts another one.
>
>> [07/Oct/2014:12:49:59 -0400] - The entry [numSubordinates] in the configfile /etc/dirsrv/slapd-EXAMPLE-COM/dse.ldif was empty or could not be parsed
>> [07/Oct/2014:12:49:59 -0400] - str2entry_dupcheck: entry has no dn
>> [07/Oct/2014:12:49:59 -0400] dse_read_one_file - Parsing entry (lineno: 116) in file /etc/dirsrv/slapd-EXAMPLE-COM/dse.ldif failed.
>> [07/Oct/2014:12:49:59 -0400] dse_read_one_file - Invalid section [nsSSL3Ciphers: -rsa_null_md5,+rsa_rc4_128_md5,+rsa_rc4_40_md5,+rsa_rc2_40_md5,
>> +rsa_des_sha,+rsa_fips_des_sha,+rsa_3des_sha,+rsa_fips_3des_sha,+fortezza,+fo
>> rtezza_rc4_128_sha,-fortezza_null,+tls_rsa_export1024_with_rc4_56_sha,+tls_rs
>> a_export1024_with ...]
>> [07/Oct/2014:12:49:59 -0400] - str2entry_dupcheck: entry has no dn
>> [07/Oct/2014:12:49:59 -0400] dse_read_one_file - Parsing entry (lineno: 121) in file /etc/dirsrv/slapd-EXAMPLE-COM/dse.ldif failed.
>> [07/Oct/2014:12:49:59 -0400] dse_read_one_file - Invalid section [numSubordinates: 1]
>> [07/Oct/2014:12:49:59 -0400] dse - Could not load config file [dse.ldif]
>> [07/Oct/2014:12:49:59 -0400] dse - Please edit the file to correct the reported problems and then restart the server.
>> [FAILED]
>> PKI-IPA...[07/Oct/2014:12:49:59 -0400] - str2entry_dupcheck: entry has no dn
>> [07/Oct/2014:12:49:59 -0400] - The entry [nsSSL3Ciphers] in the configfile /etc/dirsrv/slapd-PKI-IPA/dse.ldif was empty or could not be parsed
>> [07/Oct/2014:12:49:59 -0400] - str2entry_dupcheck: entry has no dn
>> [07/Oct/2014:12:49:59 -0400] - The entry [numSubordinates] in the configfile /etc/dirsrv/slapd-PKI-IPA/dse.ldif was empty or could not be parsed
>> [07/Oct/2014:12:49:59 -0400] - str2entry_dupcheck: entry has no dn
>> [07/Oct/2014:12:49:59 -0400] dse_read_one_file - Parsing entry (lineno: 110) in file /etc/dirsrv/slapd-PKI-IPA/dse.ldif failed.
>> [07/Oct/2014:12:49:59 -0400] dse_read_one_file - Invalid section [nsSSL3Ciphers: -rsa_null_md5,+rsa_rc4_128_md5,+rsa_rc4_40_md5,+rsa_rc2_40_md5,
>> +rsa_des_sha,+rsa_fips_des_sha,+rsa_3des_sha,+rsa_fips_3des_sha,+fortezza,+fo
>> rtezza_rc4_128_sha,-fortezza_null,+tls_rsa_export1024_with_rc4_56_sha,+tls_rs
>> a_export1024_with ...]
>> [07/Oct/2014:12:49:59 -0400] - str2entry_dupcheck: entry has no dn
>> [07/Oct/2014:12:49:59 -0400] dse_read_one_file - Parsing entry (lineno: 115) in file /etc/dirsrv/slapd-PKI-IPA/dse.ldif failed.
>> [07/Oct/2014:12:49:59 -0400] dse_read_one_file - Invalid section [numSubordinates: 1]
>> [07/Oct/2014:12:49:59 -0400] dse - Could not load config file [dse.ldif]
>> [07/Oct/2014:12:49:59 -0400] dse - Please edit the file to correct the reported problems and then restart the server.
>> [FAILED]
>>
>>
>>
>>
>>
>>
>>
>> This message (including any attachments) contains confidential information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, you should delete this message and any disclosure, copying, or distribution of this message, or the taking of any action based on it, by you is strictly prohibited.
>>
>> v.E.1
>>
>>
>> -----Original Message-----
>> From: Alexander Bokovoy [mailto:abokovoy at redhat.com]
>> Sent: Tuesday, October 07, 2014 12:43 PM
>> To: Murty, Ajeet (US - Arlington)
>> Cc: Rob Crittenden; Rich Megginson; freeipa-users at redhat.com
>> Subject: Re: [Freeipa-users] weak and null ciphers detected on ldap ports
>>
>> On Tue, 07 Oct 2014, Murty, Ajeet (US - Arlington) wrote:
>>> I was shutting down IPA before making any changes -
>>>
>>> 1. Shutdown IPA -
>>>
>>> [root]# /etc/init.d/ipa stop
>>> Stopping CA Service
>>> Stopping pki-ca: [ OK ]
>>> Stopping HTTP Service
>>> Stopping httpd: [ OK ]
>>> Stopping MEMCACHE Service
>>> Stopping ipa_memcached: [ OK ]
>>> Stopping KPASSWD Service
>>> Stopping Kerberos 5 Admin Server: [ OK ]
>>> Stopping KDC Service
>>> Stopping Kerberos 5 KDC: [ OK ]
>>> Stopping Directory Service
>>> Shutting down dirsrv:
>>> EXAMPLE-COM... [ OK ]
>>> PKI-IPA... [ OK ]
>>>
>>> 2. Edit 'dse.ldif' files to remove null ciphers -
>>>
>>> nsSSL3Ciphers: +rsa_rc4_128_md5,+rsa_rc4_40_md5,+rsa_rc2_40_md5,+rsa_des_sha,+
>>> rsa_fips_des_sha,+rsa_3des_sha,+rsa_fips_3des_sha,+fortezza,+fortezza_rc4_128
>>> _sha,+tls_rsa_export1024_with_rc4_56_sha,+tls_rsa_export1024_with_des_cbc_sha
>>> numSubordinates: 1
>> I think Ludwig gave a good suggestion -- instead of removing them from
>> the list, prefix the *_null ciphers with -, i.e. -rsa_null_md5, -fortezza_null.
>> The way nsSSL3Ciphers attribute works, is by modifying default NSS
>> ciphers list, with + and - to add and remove the ciphers accordingly.
>>
>> --
>> / Alexander Bokovoy
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