Oracle Access Manager integration with WNA/AD

Oracle Access Manager
integration with
WNA/AD
122nd November 2015 Hyderabad, India #AIOUG
SANGAM 15
Sumit Gupta
. . . . meeting of minds

Introduction
• Presenter – Sumit Gupta
• 10+ Years experience in Oracle Fusion Middleware
• OPN Certified IAM Expert
– Oracle Identity Manager 11g Certified
Implementation Specialist
– Oracle Access Management Suite Plus 11g
Implementation Specialist
– Oracle Certified Associate, Oracle Weblogic Server 12c
administrator
• Presenter
– UKOUG Tech 14 – Liverpool, UK
– Middleware SIG – Reading, UK
– Sangam 2015 – Hyderabad, India
– UKOUG Tech 15 – Birmingham, UK
• Blogger (www.OraWorld.co.uk)
– More than 150 articles
– 1200 + subscribers
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2Copyright © 2015, OraWorld Ltd. All rights reseved

Agenda
• Windows Native Authentication Overview
• Kerberos Basics
• WNA Configurations
• WNA Testing (Demo Viewlet)
• WNA Sequence Flow
• Lessons Learnt
• References
• QnA Session
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Windows Native Authentication
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Kerberos Basics
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• Native authentication protocol in Active Directory
• Kerberos Domain
• Principal (Machines, Services & Users)
– Service Principal Name (SPN)
• PROTOCOL/hostname for services
• username@DOMAIN for users
• Key Distribution Center (KDC)
• Ticket Granting Ticket (TGT)
• Service Ticket (ST)

Kerberos Basics
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WNA High Level Steps
• Tasks on the Windows domain controller:
- Configuring the domain controller to support Kerberos
Authentication
- Generating a keytab file for a service user
• Tasks on the Oracle Access Manager server:
- Configuring an Active Directory identity store
- Configuring a Kerberos authentication module
- Defining a policy that uses the Kerberos authentication
module to protect resources
• Configuring end-user browsers
23
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WNA Configuration
• Create a service user in Windows
AD Server.
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AD Server

WNA Configuration
• KeyTab generation – contains shared secret key of the service
ktpass.exe -princ HTTP/<OHS hostname>@<AD Server Domain>
-pass <Password of the user created to be mapped> –
mapuser <AD DOMAINsAMAccountName of the user created > –
out <Location_of_keytab_file>
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AD Server

WNA Configuration
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AD Server

WNA Configuration
• Copy generated keytab
(binary file) to OAM Server
• Set up krb5.conf
- Unix : /etc/krb5.conf on unix
- Windows: C:windowskrb5.conf
• KRB5_CONFIG env variable
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OAM Server
[logging]
default = FILE:/u01/app/oracle/middleware/Oracle_IAM1/wna/krb5libs.log
kdc = FILE:/u01/app/oracle/middleware/Oracle_IAM1/wna/krb5kdc.log
admin_server = FILE:/var/log/kadmind.log
[libdefaults]
default_realm = OWAD.LOCAL
dns_lookup_realm = false
dns_lookup_kdc = false
ticket_lifetime = 600
clock_skew= 600
udp_preference_limit= 1
default_tkt_enctypes = RC4-HMAC
default_tgs_enctypes = RC4-HMAC
[realms]
OWAD.LOCAL = {
kdc = owwin-ad.owad.local
admin_server = owwin-ad.owad.local
default_domain = OWAD.LOCAL
}
[domain_realm]
.owad.local = OWAD.LOCAL
owad.local = OWAD.LOCAL

WNA Configuration
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OAM Server
• Klist commands
[orafmw@iam ~]$ klist -e
klist: No credentials cache found (ticket cache FILE:/tmp/krb5cc_500)
Kerberos 4 ticket cache: /tmp/tkt500
klist: You have no tickets cached
[orafmw@iam ~]$ klist -k /u01/app/oracle/middleware/Oracle_IAM1/wna/oraworld.keytab -t -K -e
Keytab name: FILE:/u01/app/oracle/middleware/Oracle_IAM1/wna/oraworld.keytab
KVNO Timestamp Principal
---- ----------------- --------------------------------------------------------
3 01/01/70 01:00:00 HTTP/oraworld.com@OWAD.LOCAL (ArcFour with
HMAC/md5) (0x1d1b117a1db40dc241f7838b083a6b9d)

WNA Configuration
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OAM Server
• Kinit command
[orafmw@iam ~]$ kinit -V HTTP/oraworld.com@OWAD.LOCAL -k -t
/u01/app/oracle/middleware/Oracle_IAM1/wna/oraworld.keytab
Authenticated to Kerberos v5
[orafmw@iam ~]$ klist -e
Ticket cache: FILE:/tmp/krb5cc_500
Default principal: HTTP/oraworld.com@OWAD.LOCAL
Valid starting Expires Service principal
06/22/15 11:47:22 06/22/15 21:47:27 krbtgt/OWAD.LOCAL@OWAD.LOCAL
renew until 06/23/15 11:47:22, Etype (skey, tkt): ArcFour with HMAC/md5, ArcFour with HMAC/md5
Kerberos 4 ticket cache: /tmp/tkt500
klist: You have no tickets cached

WNA Configuration
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OAM Server

Browser Configuration
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• Open Internet Explorer
• Go to Tools > Internet Options > Security > Local
Intranet > Advanced
• Add OAM Server host name
Internet Explorer

Internet Explorer

• Go to Advanced tab > Security
• Check the box besides –
Enable Integrated Windows Authentication
Internet Explorer

Internet Explorer

• Go to Security > Local Intranet > Custom Level
• Select Automatic logon only in Intranet zone
• Restart Internet Explorer
Internet Explorer

Internet Explorer

• Google Chrome uses the Internet Explorer settings.
Chrome

• about:config
• Set network.negotiate-auth.trusted-uris to
OAMHOST.DOMAIN.
Firefox

Firefox

WNA Testing
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• Demo Viewlet Link
• https://www.youtube.com/watch?v=C-HKAN2InyY

WNA Sequence Diagram
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OAM Server Log.
<11-Jun-2015 13:03:12 o'clock BST> <Notice> <LoggingService> <BEA-320401> <The log file has been rotated to
/u01/app/oracle/middleware/user_projects/domains/iam_domain/servers/oam_server1/logs/oam_server1.log00059. Log
messages will continue to be logged in
/u01/app/oracle/middleware/user_projects/domains/iam_domain/servers/oam_server1/logs/oam_server1.log.>
>>> KeyTabInputStream, readName(): OWAD.LOCAL
>>> KeyTabInputStream, readName(): HTTP
>>> KeyTabInputStream, readName(): oraworld.com
>>> KeyTab: load() entry length: 63; type: 23
Added key: 23version: 3
Ordering keys wrt default_tkt_enctypes list
default etypes for default_tkt_enctypes: 23.
0: EncryptionKey: keyType=23 kvno=3 keyValue (hex dump)=
0000: 1D 1B 11 7A 1D B4 0D C2 41 F7 83 8B 08 3A 6B 9D ...z....A....:k.

www.OraWorld.co.uk
http://oraworld.com:7777/secured/index.html
GET /secured/index.html HTTP/1.1
Host: oraworld.com:7777
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
HTTP/1.1 302 Found
Date: Mon, 29 Jun 2015 11:48:49 GMT
Server: Oracle-Application-Server-11g
Set-Cookie: OAMAuthnHintCookie=0@1435578529; httponly; path=/; domain=.com
Set-Cookie: OAMRequestContext_oraworld.com:7777_505353=PSSttVqN64gXBgIbzgp8jA==;max-age=300; httponly; path=/
Location: http://oraworld.com:14100/oam/server/obrareq.cgi?encquery%3DxjRnrPN5vUi8FDE0h2Os3fXf <Trimmed>
Content-Length: 652
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=iso-8859-1

www.OraWorld.co.uk
http://oraworld.com:14100/oam/server/obrareq.cgi?encquery%<Trimmed>
GET /oam/server/obrareq.cgi?encquery%3DxjRn<Trimmed>HTTP/1.1
Cookie: OAMRequestContext_oraworld.com:7777_505353=PSSttVqN64gXBgIbzgp8jA==
HTTP/1.1 302 Moved Temporarily
Connection: close
Date: Mon, 29 Jun 2015 11:48:49 GMT
Transfer-Encoding: chunked
Location:
http://oraworld.com:14100/oam/CredCollectServlet/WNA?authn_try_count=0&spnegotoken=string&challenge_url=%2Foa
m%2FCredCollectServlet%2FWNA&request_id=-
276341910699531784&locale=en_US&resource_url=http%253A%252F%252Foraworld.com%253A7777%252Fsecured%252Finde
x.html
Set-Cookie: OAM_REQ_0=VERSION_4~ugKPHSCILJo%<Trimmed>; path=/; HttpOnly
Set-Cookie: OAM_REQ_COUNT=VERSION_4~1; path=/; HttpOnly
X-ORACLE-DMS-ECID: 74645cb114abea27:-3751213f:14dfcde14b8:-8000-0000000000029fd1

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http://oraworld.com:14100/oam/CredCollectServlet/WNA?authn_try_count=0&spnegotoken=string&challenge_url=%2Foam%2F
CredCollectServlet%2FWNA&request_id=-
x.html
GET
/oam/CredCollectServlet/WNA?authn_try_count=0&spnegotoken=string&challenge_url=%2Foam%2FCredCollectServlet%2
FWNA&request_id=-
x.html HTTP/1.1
Cookie: OAMRequestContext_oraworld.com:7777_505353=<Trimmed>OAM_REQ_COUNT=VERSION_4~1
HTTP/1.1 401 Unauthorized
Cache-Control: no-cache, no-store
Date: Mon, 29 Jun 2015 11:48:50 GMT
Pragma: no-cache
Content-Length: 0
Content-Type: text/html; charset=UTF-8
Expires: 0
WWW-Authenticate: Negotiate
WWW-Authenticate: Basic realm="OAM 11g"

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http://oraworld.com:14100/oam/CredCollectServlet/WNA?authn_try_count=0&spnegotoken=string&challenge_url=%2Foam%2F
CredCollectServlet%2FWNA&request_id=-
23&locale=en_US&resource_url=http%253A%252F%252Foraworld.com%253A7777%252Fsecured%252Findex.html
GET
/oam/CredCollectServlet/WNA?authn_try_count=0&spnegotoken=string&challenge_url=%2Foam%2FCredCollectServlet%2FWNA
&request_id=-27784&locale=en_US&resource_url=http%253A%252F%252Foraworld.com777%252Fsecured?Findex.html
HTTP/1.1
Cookie: OAMRequestContext_oraworld.com:7777_50<Trimmed>LJeWMsd; OAM_REQ_COUNT=VERSION_4~1
Authorization: Negotiate YIIGlgYGKwYBBQUCoIIGijCCBoagMDA<Trimmed>==
HTTP/1.1 302 Moved Temporarily
Connection: close
Date: Mon, 29 Jun 2015 11:48:50 GMT
Transfer-Encoding: chunked
Location: http://oraworld.com:7777/obrar.cgi?encreply=<Trimmed>
Set-Cookie: OAM_ID=VERSION_4~SrAPo4Sh9v3M<Trimmed>; path=/; HttpOnly
Set-Cookie: OAM_GITO=v1~uid:Wnauser1r&<Trimmed>c-oraworld.c&; path=/; HttpOnly;
expires=Thu, 01-Jan-1970 01:00:00 GMT
Set-Cookie: OAM_REQ_0=invalid; path=/; HttpOnly
X-ORACLE-DMS-ECID: 74645cb114abea27:-3751213f:14dfcde14b8:-8000-0000000000029fd6

www.OraWorld.co.uk

www.OraWorld.co.uk
http://oraworld.com:7777/obrar.cgi?encreply=<Trimmed>
GET /obrar.cgi?encreply=<Trimmed>k%3D HTTP/1.1
Cookie: OAMRequestContext_oraworld.com:7777_505353=PSSt<Trimmed>rr2SMpNMOF2B/DbQk3/N1Ua1onzJ
HTTP/1.1 302 Found
Date: Mon, 29 Jun 2015 11:48:52 GMT
Set-Cookie: OAMRequestContext_oraworld.com:7777_505353=;expires=thursday, 01-jan-1970 01:00:00 gmt; httponly; path=/
Set-Cookie: OAMAuthnCookie_oraworld.com:7777=<Trimmed>%3D;httponly; path=/
Set-Cookie: OAMAuthnHintCookie=X; httponly; path=/
Location: /secured/index.html
Content-Length: 230
Keep-Alive: timeout=5, max=99
Content-Type: text/html; charset=iso-8859-1

www.OraWorld.co.uk
http://oraworld.com:7777/secured/index.html
GET /secured/index.html HTTP/1.1
Cookie: OAM_REQ_0=invalid; OAM_REQ_COUNT=VERSION_4~1;
OAM_ID=VERSION_4~SrAPo4Sh9v3Mz9YtR0IUJQ==~<Trimmed<; OAMAuthnHintCookie=X
HTTP/1.1 200 OK
Date: Mon, 29 Jun 2015 11:48:52 GMT
Set-Cookie: OAMAuthnHintCookie=;expires=thursday, 01-jan-1970 01:00:00 gmt; httponly; path=/
Set-Cookie: OAMAuthnHintCookie=1; httponly; path=/; domain=.com
Cache-Control: no-cache
Pragma: no-cache
Last-Modified: Tue, 23 Jun 2015 19:07:39 GMT
Etag: "bc06de-3cd-519341a9c54c0”
Accept-Ranges: bytes
Content-Length: 973
Content-Type: text/html
Content-Language: en

• NTLM versus Kerberos
- SPNEGO token can contain either NTLM or Kerberos token
depending on the Windows client capabilities. All
pre–Windows 2000 clients use NTLM. AD domains by default
support “mixed” mode.
- If Kerberos fails, the client falls back to NTLM.
- HTTP header logger or Fiddler are best to diagnose this. Browser
logging can also help.
• Clock Skew Errors
- Synchronize clocks on both your OAM Server and the AD server
.
59 59
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Lessons Learnt

• Error:
- kinit(v5): Key table entry not found while getting initial credentials
- kinit(v5): Preauthentication failed while getting initial credentials
- kinit(v5): KDC reply did not match expectations while getting initial credentials
• PROTOCOL and DOMAIN NAME are always in CAPITAL
LETTERS.
• hostname and username are always in lower case.
60 60
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Lessons Learnt

• Configuring Access Manager for Windows Native Authentication
OAM 11g WNA Step by Step Setup Guide (Doc ID 1416860.1)
• WNA Basics
• WNA for multiple AD forest.
• Oracle Access Manager 11g WNA Quick Start Guide (Doc ID
1416903.1)
• http://tools.ietf.org/html/rfc4559
• Trouble Shooting OAM 11g WNA Issues Quick Start Guide (Doc ID
1433554.1)
• Blogs: Enable Logging & Lessons Learnt
• Kerberos Basics
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References

QnA
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Oracle Access Manager integration with WNA/AD

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