PEAP, ACS and certificates

We recently purchase a Cisco 4200 LAN Controller and 1131ag access points. We also have a Cisco ACS with 3.3.3 installed. I have been researching what is the best security option and PEAP MSCHAPv2 with WPA2 seems to make the most sense for us since it is highly secure and does not require client side certificates. I am running into a bit of trouble with this implementation because we do not have an in house CA. Can I install a certificate from a third party, such as versign on the ACS? What type of certificate do I need? Do I need to use the Cisco client utility or can I just use windows with the builtin laptop wireless adapters?
thanks

The windows clients will trust them if they trust the root CA. A trusts B, B trusts C so therefore A trusts C. 1. Install Root Cert on ACS box. 2. Install Identity Cert on ACS. 3. Make sure your windows clients trust the root from where you received the indentity cert for your ACS box.
BTW: The self signed cert from ACS is only good for 1 year.
Where you aware that Cert services are offered with Windows 2000/2003 server? It's fairly easy to setup. One drawback with 2003 is that you have to create a web template for the cert for ACS but's there are plenty of doc's out there. Search for "ACS Certificate Windows PEAP". Just post again if you have any questions...

Similar Messages

ACS Wildcard Certificate Install for PEAP

Does ACS support Wildcard certificate authentication, such as *.domain.com? We installed the certificate through ACS using CA, but when using wireless devices, the certificate is still not verified. Any information would be helpful before we go and purchase another certificate. Thank you.

Can someone validate whether wildcard certs are supported with ACS and PEAP, please. I'm running into the same issue that Jason outlines above. It seems that Windows clients specifically don't like the wildcard cert. I have tried with Mac and iPhone and they seem to work if you accept the cert into the keychain on first connect.

PEAP, ACS, Aironet, and W2K CA

I would like to ask if anyone knows of a resource that effectively spells out how to configure and use Microsoft CA services to issues valid certs for a PEAP implementation using a W2K installation of ACS 3.1, Aironet 1220 wireless access points, and the 6.x ACU. The only documentation I could find on the Cisco site is poorly lacking. My ACS TAC engineer wrote up his own documentation, but following these directions, I install only root certs, not server certs. I cannot get an authoritative answer to simple questions, such as what node gets what kind of cert, and etc.
Thank you,
Paul Dieterich

I ran into the same issue when first attempting to configure PEAP. I also received some PEAP configuration documents from TAC which was pretty straightforward but I also ran into some "gotchas" with it. The way that I configured the CA server was as a Standalone Root CA, generated a private key using ACS, and then pasted the private key generated from the ACS server into the Advanced Certificate Request Form as a Base64 Encoded Certificate Request so I could then download and install the issued certificate to the ACS server. Once that was completed, I configured my APs and then generated the client certificates and installed them for the clients. One of the big "gotchas" that I ran into was concerning the supplicants (clients). Windows 2K clients must install a Microsoft "Hot-Fix" or patch in order to select the authentication type with their Network Properties and select specific certificate settings. I've got some documentation on this, if you would like for me to pass it along.
Hope this helps.
cdeeds

ACS SE 4.2, 802.1x and certificates for machine authentication

I'm trying to figure out how to put this lot together, but dont know enough about ACS when used with an external CA.
What I want to get working is:
A PC with a machine cert gets connected to a switch running 802.1x. The switch uses EAP with .1x to query PC, handing this off to ACS, that bit I'm ok with. The ACS needs to query the CA server to authenticate the PC, its this process I'm not sure about.
Reading the documentation I think that I need to configure LDAP between the ACS and the CA, which is running on 64-bit 2008 server. But, ACS SE remote agent is 32 bit only.
Is this correct, if so how do I get ACS SE to communicate with a 64-bit 2008 CA server?

Hi Bernhard,
That answers my questions, having never worked with AD, CA and LDAP etc I didn’t realise that you could assign attributes at a user (machine in my case) level, although it makes perfect sense when you indicated that, as LDAP is a method of supporting user accounts right?
I suppose in that case I'll be able to assign an attribute through LDAP, which ACS will use to map that account/machine to a specific VLAN. The attribute value will be used to represent the VLAN mapping.
What component in ACS do I use to match against attributes? I don’t see anything in the NAP, NAF or RAC sections about this.
As an alternative, your reply prompted me to look at the ACS User Group mapping section, it describes mapping a windows group to an ACS group, which may also be a solution, although not as flexible as being able to match on an LDAP attribute associated with the machine accounts.
Reading through this it seems this is an area where the SE and Windows based ACS platforms differ, I'm using SE.
Andy

Problems with 802.1x MS PEAP machine and user authentication

Using Microsoft PEAP 802.1x client on Windows XP SP2, if we enable machine authentication against a Windows Domain, the machine authentication is successful and the machine gets access to the network. However, when user logon occurs to the domain, contrary to the flow given in ACS and Windows documentation, no user authentication takes place.
We need to differentiate user access based on their identities. We need machine authentication only to allow users access to the domain controller and also GP implementation.
Any idea why user does not get prompted when they logon. 802.1x is configured in users profile and I have tried with both integrated and non-integrated with Domain logon (i.e. "use my windows logon name and password and domain (if any) option"
There is no record of any identity request/response in ACS after the initial machine authentication (which appears in successful authentication log)
We are using MS-CHAPv2.

Update...The problem of cached credentials in MS PEAP does not occur if "enable logon using Windows username and password (and domain if any) is checked. Using this option, MS PEAP always uses logged on users most current credentials.
However, using this option sends the username as "DOMAIN\USERNAME". Since we are using ACS internal database for user authentication (even though the ACS and Windows passwords are same - using an identity management system) ACS does not recognize the user.
I have tried proxy distribution with prefix stripping but it does not seem to work when it is pointing to the same ACS server on which proxy distribution is configured and which receives the request.
Any idea how the domain\ can be ignored by ACS?

Not able to install or generate acs server certificate

Hi,
I have one test set-up with one layer 3 switch and one autonomous AP 1131. I have configured one SSID and without any authentication and it was not able to connect successfully.
But now i want to try enable WPA2 enterprise ( Actually , after checking with the test set up , i am going to implement in live set-up where i have to configure WPA2 enterprise so that i would like to go for testing wpa2 enterprise not wpa2 personal ).
I have ACS server 3.0 trial version and installed on windows server 2000 and
on AP 1131 i have configured radius server commands
( aaa- new model and radius server host ... ip address ... key ..... shared secret ... password .. ).
I am confused with certificate which is required to install on acs server but i am not able to generate the certificate or not able to get the certificate from anywhere in acs server option.
how to generate acs server certificate in trial version 3.0 and after generating how to install in acs server and what about client ... will it be same certificate which i need to install in cllient PC's and if yes how to add in client pc's and if not , where will i get cllient certificate ,..
if i buy ACS software which i will be installed windows platform , i will get two certificate ,,,,,,,,, what about acs trial version software .... will i be able to get certificate .......
i am trying to refer so many documents but it could not help me ..
Your help will be appreciative.
Looking for proper information.

Hi,
Thanks for your response ....
obivously , This ACS 3.0 is end of supprt but when i tried to install the acs 4.0 or later , I am not getting an error saying " basic platform should be installed first , that is ACS 3.0 ".
That is the reason i have gone for this edition .
Should i go for upgrading the acs 3.0 to 4.1 or later version ?
if so , will it be possible on trail version ?
please give me your suggestion.

ACS RADIUS Certificate Access Workflow

Hello Friends, I've been trying to deploy a ACS solution that includes Radius, connection with an AD database and Certificate-Based Access to the network but the documentation that I have found is very very vague and is getting a little bit complex for me to deploy it. I wonder if there's a guide or a better organize documentation about the diferent scenarios of configuration for the ACS solution. At least a workflow configuration document that has secuenced steps. Thanks in advance for your help.
PD: If any of you is involved with Cisco documentation I hope it serves as a suggestion and recommendation.
Atte. Jonás.

Hi Jonas,
Please take a look into this doc:
https://supportforums.cisco.com/docs/DOC-13545.
It is a step-by-step guide to configure ACS for dot1x, installing certs on the ACs and integration with AD.
Regarding the Certificate based authnetication, there you need to be more specific on what EAP type you intend to use.
HTH,
Tiago
If this helps you and/or answers your question please mark the question as "answered" and/or rate it, so other users can easily find it.

Server 2012 R2 - Essentials Experience - - I jacked my CA and certificates all to @#&$%!!

Windows Server 2012 R2 - Essentials Experience
In trying to put pieces together, I jacked my CA and certificates all to @#&$%!!
Some of the factors involved are:
Server0 - Hyper-V Host
  Server1 - DC, 2012 R2 Essentials Experience role
  Server2 - Exchange 2013
Client Machines -
  Windows 7 Pro
  XP (Yes, these are my cross to bear... - worth noting their presence, but I'm working them out)
The functional requirements:
  Anywhere Access for Remote users
   - Remote Desktop for Windows 7 machines
  Outlook Web Access
The mistake... 'Web Application Proxy'
-which uninstalled the CA
There is a CA back now, but after days of spinning in cirles in a rare area where I feel nearly completely lost (Certificate services) I am asking for help getting these pieces put back together.
The current situation:
The network is up with all of the network and business services required to work 'Inside the Office' - so the client is "functional".
The "Essentials Experience" is broken and won't install to the clients, though it does provide the Essentials website, access to server shared files (fairly gracefully, I might add) and, as an administrator user, I can get to the servers via
RWA through the site and there are no certificate problems with that since I have a secured certificate for the domain.
OWA has been moved to a further back burner while I try to get the Essentials Experience functioning t the point where the remote users can get to their workstations through RWA... This is the biggest current hurdle... RWA for the clients.
Trying to install the client to the workstations nets me the "The Server is not available. Try connecting this computer again,..." message at the point of username and password authentication.
The clientdeploy.log finishes like this:
[4976] 141016.153746.2670: ClientSetup: Standard Error:
[4784] 141016.153746.2670: ClientSetup: The exit code of the process (C:\Windows\system32\nslookup.exe) is: 0
[4784] 141016.153746.2670: ClientSetup: Set CD Fail reason 10 for SQM in ClientDeployment.exe
[4784] 141016.153746.2670: ClientSetup: RecordClientDeploymentFailReason: Save registry failed in ClientDeployment.exe : System.UnauthorizedAccessException: Cannot write to the registry key.
  at Microsoft.Win32.RegistryKey.EnsureWriteable()
  at Microsoft.Win32.RegistryKey.CreateSubKeyInternal(String subkey, RegistryKeyPermissionCheck permissionCheck, Object registrySecurityObj, RegistryOptions registryOptions)
  at Microsoft.Win32.RegistryKey.CreateSubKey(String subkey, RegistryKeyPermissionCheck permissionCheck)
  at Microsoft.WindowsServerSolutions.ClientSetup.ClientDeploy.Helper.RecordClientDeploymentFailReason(UInt32 failReason)
[4784] 141016.153746.2670: ClientSetup: Exiting ValidateUserTask.Run
[4784] 141016.153746.2670: ClientSetup: Task with Id=ClientDeploy.ValidateUser has TaskStatus=Failed
[4784] 141016.153746.2670: ClientSetup: Task with Id=ClientDeploy.ValidateUser has RebootStatus=NoReboot
[4784] 141016.153746.2670: ClientSetup: Exting ConnectorWizardForm.RunTasks
[1272] 141016.153755.0976: ClientSetup: Back from the Client Deployment Wizard
[1272] 141016.153755.0976: ServerDiscovery:HostsFileUpdater: Removing hosts file entry: 1-WGB-01
[1272] 141016.153755.0976: ClientSetup: Saving Wizard Data
[1272] 141016.153755.0976: ClientSetup: End of ClientDeploy: ErrorCode=1603
The computerconnector.log shows nothing of value.
What I want to accomplish as a 'first step' toward recovery is to get the workstations properly connected so they show up in the Dashboard 'Devices' pane and can be managed and access by the Essentials tools.
Secondarily, I would like to get the client side tools in place and functioning (I expect the latter will be a side effect of the former).
So,... for anyone patient enough to have read this far... uh,... help?

Actually,... I can now confirm the delicacy of which you speak...
After a support incident with Microsoft which spanned a marathon 18+ hours on the phone and remote access by no fewer than 7 Microsoft Engineers, we got to a successful result.
It is a point of utter frustration for me when people put in threads like this then don't bother to come back and report 'how the issue was solved', and sadly, I am about to have done that merely because my span of functional attention and valuable reporting
capability was basically gone before I submitted the ticket and following all that was done in my state was not conceivably possible.
So - all I can do is apologize for not being able to report a valuable resolution and give a few little tidbits.
The net result is this - DO WHAT YOU CAN TO AVOID THE SITUATION IN THE FIRST PLACE. Once your CA is in place, LEAVE IT THE $%@& ALONE!!!! I mean... my best current advice.
In all, the CA was uninstalled and reinstalled 4 times after my blunder and significant work was done in ADSIEdit as well as substantial manual manipulation of certificates and CAs that was well outside of my (quite considerable) scope of expertise.
I wish I had more to offer in the world of resolution.
With this said, I will make one more request of viewers and moderators alike:
THIS QUESTION IS OFFICIALLY NOT ANSWERED. IT WILL NEVER BE ANSWERED. THE RESOLUTION IS NOT AVAILABLE TO THE MORTAL MAN.
DO NOT MARK IT AS ANSWERED
IF YOU MUST DO SOMETHING, DELETE THE WHOLE THREAD, BUT DO NOT BURDON PEOPLE WHO ARE LOOKING FOR REAL ANSWERS WITH THE NECESSITY OF READING THROUGH THIS.
DO NOT MARK THIS QUESTION AS ANSWERED
I hope this makes sense for people, and I hope people will appreciate NOT having to read this as though there is some 'resolution' contained within.

PKCS#11 Provider unable to fetch asymmetric keys and certificates

Hi,
I'm facing a problem while getting keys and certificate from Eracom HSM (ProtectServer Orange:38039 Model: PSO:PL50) using Sun PKCS#11 Provider. It gets only the symmetric keys but NEVER gets the asymmetric keys.
My code snippet and configuration file are:
     Java Code:
     java.io.InputStream is = new java.io.FileInputStream("pkcs11.cfg");
sun.security.pkcs11.SunPKCS11 pkcs11_provider = new sun.security.pkcs11.SunPKCS11(is);
System.out.println("Provider Name : " + pkcs11_provider.getName());
java.security.Security.addProvider(pkcs11_provider);
KeyStore ks = KeyStore.getInstance("PKCS11", pkcs11_provider);
ks.load(null, "password".toCharArray());
java.util.Enumeration obj_enumeration = ks.aliases();
while (obj_enumeration.hasMoreElements()) {
String str_certAlias = (String) obj_enumeration.nextElement();
System.out.println("Alias : " + str_certAlias);
     pkcs11.cfg:
     name = Eracom
     library = G:\Eracom\cryptoki.dll
     slot = 0
     attributes(*, CKO_PRIVATE_KEY, *) = {
     CKA_TOKEN = false
     CKA_SENSITIVE = false
     CKA_EXTRACTABLE = true
     CKA_DECRYPT = true
     CKA_SIGN = true
     CKA_SIGN_RECOVER = true
     CKA_UNWRAP = true
     attributes(*, CKO_PUBLIC_KEY, *) = {
     CKA_ENCRYPT = true
     CKA_VERIFY = true
     CKA_VERIFY_RECOVER = true
     CKA_WRAP = true
I also ran my program without specifying any attributes in configuration file, also tried many other combination, but in all cases (with or without attributes) only symmetric keys are loaded from HSM. I am able to get all keys (symmteric and asymmteric) and certificates from the same HSM using IAIK PKCS#11 Provider. Though, the Sun PKCS#11 Provider is working fine with SmartCard tokens (Rainbow, Alladin etc.)
Any help to resolve my problem would be highly appreciated.
Thanks in advance.

I recently had a problem with ECDSA and the PKCS#11 library of nCipher. Here's info from one of their engineers about the PKCS11 library:
"There are two separate issues - one is that our current pkcs11
release doesn't support ECDSA signature with SHA-2 hashes
(the v11.00 firmware adds support for it, but the main release version of
the pkcs11 library hasn't been updated to take advantage of it yet).
There is a hotfix version that does support SHA-2 hashes with some
restrictions, talk to [email protected] for details, and V11.10
should be out soon and have that merged in.
But the issue with setting CKA_SIGN is that our underlying HSM API
allows elliptic curve keys to be either key exchange (ECDH) or
signature (ECDSA) keys, but not both at one.
At the PKCS #11 level, if you specify CKA_DERIVE=true and let
CKA_SIGN default, it will default to false, and vice versa.
If you specify both CKA_DERIVE=true and CKA_SIGN=true, then we
return CKR_TEMPLATE_INCONSISTENT because we can't do both with
the same key. (However, the tests using C_GetMechanismInfo will
show that we can do both mechanisms, because we can - so long
as you use different keys, even though they have the same PKCS#11
type.)
I can't comment on when or how that will be changed."
I was using the PKCS#11 library through NSS when I ran into the problem, but I imagine Java would run into similar problems also using the PKCS#11 library. I was able to generate keypairs but not create a CSR (which required making a signature, which required SHA-2).
Can you just use the java classes to speak to the netHSM? I've never directly written code to do so myself, but I have used Corestreet's OCSP product that uses the java classes to speak to the nCipher HSMs (though not using EC). It might work better than going through the PKCS#11 layer. There should be a java directory under NFAST_HOME that contains some jars.
Please post back if you figure anything out as I'll probably be playing with this stuff myself soon.
Dave

ACS and Windows Domain / AD

Hi All,
In my environment there are two Windows Domain - Doamin A and B. ACS is configured on member server in domain B and hence Windows Authentication for users in Domain B is working fine. However I'm unable to see domain A in Configure Domain List on ACS server in Windows Domain configuration menu.
Please note, there is one way trust between domain A and B with Domain A trusting Domain B.
Is there a way I can use the same instance of ACS to authenticate the users in Domain A as well? If YES, can you please guide me with some pointers - thanks.
I'm using ACS and Windows AD elements to authenticate users for SSL Web VPN on ASA 5540.
Apprecaite quick help on this.
-Satishcp

Unfortunatley we are not using the Cisco Secure ACS Appliances, rather its ACS Ver 3.3 running on Windows 2000 Server (member server in Domain B).
My guess Remote Agents for Windows / Solaris works with Appliances alone.

ACS and Windows Server

I have installed ACS 5.2 on a machine and I am trying to integrate with that Windows Server 2003 ( Active Directory ) . On the ACS when i do test connection it shows me sucess but when i save the setting it gives me Time error . I kept the clock and timezone of Active Directory and ACS server as same but still it gives me error . I read on one of the blog that it is better to configure NTP on a router and then sync both the devices with same NTP .
Is it necessary to configure NTP or manual config should also work ?

I have ran into issues like what you are seeing without using NTP. I would suggest setting up NTP and having ACS and your servers sync to that.
Sent from Cisco Technical Support iPhone App

Print out of Inspection report and Certificates

Hi Gurus,
I want to take inspection reports and certificates printout.
Is there any standard transaction other than QGA3 and QC21
Please let me know
Thanks and Regards
Hari

Hello Hari,
You can take the certificates printout with QC21 or QC22 (as applicable). What information you are looking in inspection reports ? Then we can suggest the appropriate set of the reports
Cheers
Kaushik

Webservice call failed during execution (SSL and certificates) on NetWeaver 7.30

Hey experts,
i need your help!
We make webservice calls to sap me with our own software.
We connect to our software via SSL and certificates e.g. https://host:50001/XMII/CM/POD/MEDialogsWeb.irpt
At the beginning the software runs without any problems and than we become the following message on all our webservice:
thats the webservice configurations
(configuration - connectivity - single service administration):
(configuration - security - authentication and single sign-on)
if we restart the software after the error display, the webservice call runs successfully again.
is it a timeout?
can anybody help us?
Thanks,
Markus
our system info:
NetWeaver 7.30 Java
SAP ME 6.0
software runs log looks as following
software doesn't runs log looks as following
security Log Entry
more info from security_00.0.log
#2.0 #2014 06 06 14:51:17:136#+0200#Warning#/System/Security/WS#
com.sap.ASJ.wssec.020142#BC-ESI-WS-JAV-RT#tc~sec~wssec~service#C0000A650AD826FF0000000100000BEC#3855850000000005#sap.com/me~ws#com.sap.engine.services.wssec.authentication#Guest#0##207092CAED7111E3A01A0000003AD5EA#23386e31ed7911e39d560000003ad5ea#23386e31ed7911e39d560000003ad5ea#0#Thread[HTTP Worker [@648881277],5,Dedicated_Application_Thread]#Plain##
Received unsupported callback: com.sap.engine.interfaces.security.auth.SetLogonTicketCallback
Received unsupported callback: com.sap.engine.lib.security.http.HttpSetterCallback
Read data of type username and value MEFLEX from wsse:Security header and set on module javax.security.auth.callback.NameCallback
Read data of type username and value from HTTP header and set on module javax.security.auth.callback.NameCallback
Read data of type password and value xxx from wsse:Security header and set on module javax.security.auth.callback.PasswordCallback
Read data of type password and value xxx from HTTP header and set on module javax.security.auth.callback.PasswordCallback
Authentication for web service ShopOrderService, configuration ShopOrderService using security policy BASIC*SSO2*_*_*ws failed: Cannot authenticate the user.. (See SAP Note 880896 for further info).

Hi,
the authentication for the second call is failing. Have you tried suggest log level from note 880896 - Web Service authentication failure? I would also try to use something like SoapUI to test if the issue is caused by your application or something wrong on SAP side. Also coparing messages for the first and second calls might give you answer.
Cheers

Question concerning WebService and certificates

Hi, well i'd like to get data from a WebService. Scenario is RFC to WebService in SAP XI.
Therefore i also have to use user&pw and a certificate key i got previously!
So i created the receiver channel and now i am stuck. There is the option User Authentification and Configure Certificate Authentication. What do i have to use and how to configure. I know i have to use the keystore-service in VisualAdmin, but how?!
I already read this: /people/rahul.nawale2/blog/2006/05/31/how-to-use-client-authentication-with-soap-adapter but it does not fir my needs actually.
Again, i have user&pw AND certificate-key (only key in plain characters!). how to use these 3?!
thx in advance, br

Hi Jens,
Go through following pdf. It will clear some of you doubts.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/964f67ec-0701-0010-bd88-f995abf4e1fc
-Pinkle

ACS and Windows 2000 user database communication port

Could my Windows 2000 SP4 + ACS v3.23 can install any new Windows 2000 service pack ?
I'm affraid to infect ACS Service.
So, I want to install firewall on this server to block malicious traffic.
However, my ACS used external user database Windows 2000 for authentication.
Who can tell me What protocols or port list they are communication?
I have to avoid these traffic on my firewall.

Hi cheng
I think you can install any servie pack without problem and the SP4 is the latest one for WIN2000 and you server already has this SP
For your second question you need to specify many protocols according to your active directory config in this link you can find a list of this protocols and the best way is to make debug or logging or use a siniffer to know the exactly protocols flow between your ACS and AD server
http://www.microsoft.com/technet/prodtechnol/windows2000serv/technologies/activedirectory/deploy/confeat/adrepfir.mspx
Best Regards

PEAP, ACS and certificates

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