JDK 1.6.0_18 MD2withRSA is disabled exception

Hi,
Who knows what should be done to security certificates on the web-server to get rid of that exception.
I am getting the exception, when trying to do SSL connection from Java to some secure web-sites using https
protocol. I know that MD2 is not secure anymore and Sun disabled its use, but must they at least give some
workarounds or heads up and explanations?!!! There is nothing in the Release notes and bug 6861062
has mysteriously disappeared.
Does anybody else has such problems? I am surprised that there is no big noise about this issue yet -
only couple of posts and no answers.
Verisign claims that their certificates are Ok, even though some roots are signed with md2RSA.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: algorithm check failed: MD2withRSA is disabled
     at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source)
     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(Unknown Source)
     at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source)
     at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source)
     at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(Unknown Source)
     at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(Unknown Source)
. . .

Fandy44 wrote:
Guys, read carefully the question! I don't need discussions here - I am asking for advice.So you are allowed to make fatuous comments but we are not allowed to comment on them. I've got some advice for you but it is against the forum COC for me to post them.
There is no problem with the
MD2 signature being insecure - the problem is that SUN has disabled MD2 support and gave no workarounds or release notes. Now the people who presumably has old certificates has their web-sites shut down. Verisign insist that their old
certificates are OK Yet the consensus seem to say not. Would you prefer Sun to just ignore the consensus and ignore the problem?
(https://knowledge.verisign.com/support/ssl-certificates-support/index?page=content&id=AD146)
- so who to blame?Why do you want anyone to be to blame? Every secure system ever devised probably has some flaw. Just look at the recent flaws found in the SSL/TLS renegotiation protocol.
I guess - SUN, who did not test their patch with old Verisign certificates.Argh, so now we have it. Sun and not Verisign are to blame for Verisign having possibly insecure certificates.
BTW, the old Verisign certificates may still have few years to expire!Since sites authenticated using these old certificates are potentially flawed I would have expected that anyone who has a certificates signed by them to be rushing out to get a new certificate. The cost is likely to be minimal when compared with the possible loss of business.
Sorry I felt the need to comment on your comments. I won't do it again.
Bye

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Java 1.6.0_19 MD2withRSA is disabled issue

Some of our clients have been upgraded to the latest jre 1.6.0_19. They get the following exception:
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SEND TLSv1 ALERT: fatal, description = certificate_unknown
Data Processor, WRITE: TLSv1 Alert, length = 2
This is the certificate in question:
Version: V1
Subject: OU=Class 3 Public Primary Certification Authority, O="VeriSign, Inc.", C=US
Signature Algorithm: MD2withRSA, OID = 1.2.840.113549.1.1.2
Key: Sun RSA public key, 1024 bits
modulus: 14140032204...Omitted for brevity...36711
public exponent: 65537
Validity: [From: Sun Jan 28 19:00:00 EST 1996,
               To: Tue Aug 01 19:59:59 EDT 2028]
Issuer: OU=Class 3 Public Primary Certification Authority, O="VeriSign, Inc.", C=US
SerialNumber: [    70bae41d 10d92934 b638ca7b 03ccbabf]
Algorithm: [MD2withRSA]
Signature:
0000: BB 4C ...Omitted for brevity
0070: C0 7D B7 72 9C C9 36 3A 6B 9F 4E A8 FF 64 0D 64 ...r..6:k.N..d.d
Now I tested this with 1.6.0_18, and there are no problems with this certificate. No exceptions are thrown and logging in is successful. Why would this be if MD*withRSA has been disabled starting with 1.6.0_17 and upwards?
Upon looking at the 1.6.0_19 release notes, I noticed that several root certificates have been replaced in that release, including the one which we are currently using which uses MD2withRSA encryption.
Can anyone confirm that the reason why this is working in 0_18 is because the root cert in question was removed in 0_19?
Thanks in advance

Just confirmed that with 1.6.0_18 there is no issue with a root certificate which uses the MD2withRSA algoritm. In there it says that it found a trusted certificate. Is the reason this no longer wrks in 1.6.0_19 that this verisign class 3 ca cert was removed from the jre?
chain [2] = [
Version: V1
Subject: OU=Class 3 Public Primary Certification Authority, O="VeriSign, Inc.", C=US
Signature Algorithm: MD2withRSA, OID = 1.2.840.113549.1.1.2
Key: Sun RSA public key, 1024 bits
modulus: 1414003220445505168651...Omitted for brevity...6711
public exponent: 65537
Validity: [From: Sun Jan 28 19:00:00 EST 1996,
               To: Tue Aug 01 19:59:59 EDT 2028]
Issuer: OU=Class 3 Public Primary Certification Authority, O="VeriSign, Inc.", C=US
SerialNumber: [    70bae41d 10d92934 b638ca7b 03ccbabf]
Algorithm: [MD2withRSA]
Signature:
0000: BB 4C 12 2B CF 2C 26 00 ...Omitted for brevity
0070: C0 7D B7 72 9C C9 36 3A 6B 9F 4E A8 FF 64 0D 64 ...r..6:k.N..d.d
Found trusted certificate:
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Signature Algorithm: MD2withRSA, OID = 1.2.840.113549.1.1.2
Key: Sun RSA public key, 1024 bits
modulus: 141400322044...Omitted for brevity...6711
public exponent: 65537
Validity: [From: Sun Jan 28 19:00:00 EST 1996,
               To: Tue Aug 01 19:59:59 EDT 2028]
Issuer: OU=Class 3 Public Primary Certification Authority, O="VeriSign, Inc.", C=US
SerialNumber: [    70bae41d 10d92934 b638ca7b 03ccbabf]
Algorithm: [MD2withRSA]
Signature:
0000: BB 4C 12 2B CF 2C 26 00 4F 14 13 DD A6 FB ...Omitted for brevity...
0070: C0 7D B7 72 9C C9 36 3A 6B 9F 4E A8 FF 64 0D 64 ...r..6:k.N..d.d
Edited by: javadev157 on Apr 8, 2010 11:30 AM
Edited by: javadev157 on Apr 8, 2010 11:30 AM

Smart update / My Oracle Support authentication & MD2withRSA is disabled

Greetings,
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regards,
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r/IHR45R/apps/tech_st/10.1.3/appsutil/jdk/lib/tools.jar:/home/apps/ora_hr/IHR45R/apps/tech_st/10.1.3/appsutil/jdk/jre/lib/rt.jar:/home/apps/ora_hr/IHR45R/app
s/apps_st/comn/java/lib/appsborg.zip:/home/apps/ora_hr/IHR45R/apps/tech_st/10.1.2/forms/java:/home/apps/ora_hr/IHR45R/apps/tech_st/10.1.2/forms/java/frmall.j
ar:/home/apps/ora_hr/IHR45R/apps/tech_st/10.1.2/jlib/ewt3.jar:/home/apps/ora_hr/IHR45R/apps/tech_st/10.1.2/j2ee/OC4J_BI_Forms/applications/formsapp/formsweb/
WEB-INF/lib/frmsrv.jar:/home/apps/ora_hr/IHR45R/apps/apps_st/comn/java/classes"
Calling /home/apps/ora_hr/IHR45R/apps/tech_st/10.1.3/appsutil/jdk/jre/bin/java ...
Exception in thread "main" java.sql.SQLRecoverableException: Io exception: Broken pipe
at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:101)
at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:133)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:199)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:263)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:521)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:418)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:510)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:203)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:510)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at oracle.apps.ad.worker.AdJavaWorker.getAppsConnection(AdJavaWorker.java:1036)
at oracle.apps.ad.worker.AdJavaWorker.main(AdJavaWorker.java:276)
Caused by: java.net.SocketException: Broken pipe
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:103)
at java.net.SocketOutputStream.write(SocketOutputStream.java:147)
at oracle.net.ns.DataPacket.send(DataPacket.java:150)
at oracle.net.ns.NetOutputStream.flush(NetOutputStream.java:180)
at oracle.net.ns.NetInputStream.getNextPacket(NetInputStream.java:169)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:117)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:92)
============================================================================================================================================
Thanks and Regards,
Jagadeesha

Hi ,
Thanks for our prompt response.
After following Oracle Recommendation same error getting no improvement.
Below is the alert log error.
================================================================================================
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for IBM/AIX RISC System/6000: Version 11.2.0.3.0 - Production
TCP/IP NT Protocol Adapter for IBM/AIX RISC System/6000: Version 11.2.0.3.0 - Production
Oracle Bequeath NT Protocol Adapter for IBM/AIX RISC System/6000: Version 11.2.0.3.0 - Production
Time: 01-NOV-2012 11:02:37
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12606
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=10.16.0.194)(PORT=61100))
WARNING: inbound connection timed out (ORA-3136)
Thu Nov 01 11:02:45 2012
==============================================================================================
Let me know how to check the processes we have 8 CPU and running with distrubed mode with 32 worker with each server 16.
Let me know what i need to check in the /etc/hosts file.
Thanks,
Jagadeesha

JDK 1.6.0_18 MD2withRSA is disabled exception

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