Disable SSL/TLS renegotiation

Is it possible to disable SSL/TLS renegotiation in SJSWS 7.0?
I'm asking because of the recently published SSL/TLS protocol flaw (CVE-2009-3555) described here: [http://extendedsubset.com/?p=8|http://extendedsubset.com/?p=8]
Thanks and regards,
Jostein Tveit.

The TLS Renegotiation vulnerability is now addressed in Sun Web Server 7.0u7.
For more details, please refer to
[http://blogs.sun.com/jyrivirkki/entry/more_thoughts_on_web_server|http://blogs.sun.com/jyrivirkki/entry/more_thoughts_on_web_server] , forum announcement
[http://forums.sun.com/thread.jspa?threadID=5420698&tstart=0|http://forums.sun.com/thread.jspa?threadID=5420698&tstart=0] and
the blog [http://blogs.sun.com/webtier/entry/sun_web_server_7_0u7|http://blogs.sun.com/webtier/entry/sun_web_server_7_0u7] .

Similar Messages

How to check SSL/TLS Renegotiation Protocol Change?

Hi:
I am applying patch #12837860 (part of CPU jan 2012). The link below is the readme. I don't know how to check if I need SSL/TLS Renegotiation in step #8.
https://updates.oracle.com/Orion/Services/download?type=readme&aru=14106915#CHDECEJC
8.After patching, see My Oracle Support Note 1301699.1, How the SSL/TLS Renegotiation Protocol Change Affects Oracle HTTP Server for more information on using SSL with Oracle HTTP Server.
Would you please tell me how to check if I need and how to reset it? This is for EBS 12.1.3, DB 11.1.0.7, 10.1.2.3 and 10.1.34 on Linux.
Thank you for your help in advance.

Both. When you use the JSSE APIs you must explicitly initiate a rehandshake. Of course, if you are the responder and you receive a hello request or a client hello, you will respond to it. I'll have to think about if there is someway for the responder to reject a rehandshake attempt.

Apple Mail 8.2 disables SSL to POP3 server (Securityrisk)

Hi,
Setup
Computer:
OSX 10.10.2
Mail 8.2 (2070.6)
Mail server A
POP3 port 995 SSL
(Non SSL - port 110 - is disabled due to security reasons)
Mail server B
POP3 port 110
POP3 port 995 SSL
Summary
OSX Mail client removes SSL support on non regular intervals for POP3 connections. For the connections that support regular non SSL POP3 (port 110) this reduces the security, but the mail is available. This was noticed by me because one ISP has locked down their POP3 server to SSL only due to security reasons. After reenabling SSL on the connection (Mail -> Preferences -> Accounts -> Account in question -> Advanced) the connection remains with SSL support for a while, then it is removed again. As OS X Mail has no token to identify SSL or regular port 110 connection this is transparant to the user, unless the server does not support regular POP3, at which time a error is generated.
Comments
1) This seems to be a security related issue with mail where OS X mail downgrades from SSL connection to regular port 110 POP3 traffic
2) If corrected the connection is downgraded again within a couple of days, if not sooner.
3) Connections to POP3 servers supporting port 110 are "unaffected" with the exception of the security issue of a downgrade
4) Connections to POP3 servers that only support SSL - port 995 - are not able to complete until SSL has been reenabled manualy.
5) Downgrade bug has been seen only on my machine, so it might not be something mainstream. Machine is updated to latest patches.
Questions
1) As this has only been observed on my machine, has anybody else seen this POP3 SSL downgrade bug?

Same problem. The following information is from Symantec:
To disable SSL\TLS
Open Apple Mail.
Click the Mail menu and select Preferences.
Select your mail account on the left under Accounts, then click the Advanced tab.
Confirm the check box labeled "use SSL" is not checked next to ports. If necessary remove the checkmark.
Click the Account Information tab and select Edit Server list from the drop down next to Outgoing Mail Server.
Click the Advanced tab and confirm there is not a checkmark next to Use Secure Socket Layer(SSL).
Click OK and close the accounts. Window and choose to save.
Click Save to update your settings.
Restart Apple Mail.
This does work for a while but eventually Mail reverts to enabling Use SSL and disabling Allow Insecure Authentication but only one some of my addresses but not all. Some accounts POP logs-in but not SMTP.

How to disable SSL renegotiation in weblogic 10.3

Hi,
Can someone advise how to disable the SSL renegotiation in weblogic 10.3 server with jdk 1.6.0_35-b10 or 1.6.0_07-b06?
I tried to set up below properties when starting up weblogic server. But didn't work.
-Dweblogic.security.disableNullCipher=true -Dweblogic.ssl.AllowUnencryptedNullCipher=false -Dweblogic.security.ssl.enable.renegotiation=false -Dssl.debug=true -Dsun.security.ssl.allowUnsafeRenegotiation=false -Dsun.security.ssl.allowLegacyHelloMessages=false
Really appreciate if anyone can give any advise.

Thanks PratikS.
I tried to apply such patch in weblogic10.3.0. But got below NoSuchMethodError. Any idea? Any other patch needed?
<Jun 3, 2013 1:25:49 PM CST> <Critical> <WebLogicServer> <BEA-000386> <Server subsystem failed. Reason: java.lang.NoSuchMethodError:weblogic.protocol.ServerChannel.getConfig()Lweblogic/management/configuration/NetworkAccessPointMBean;
java.lang.NoSuchMethodError: weblogic.protocol.ServerChannel.getConfig()Lweblogic/management/configuration/NetworkAccessPointMBean;
at weblogic.security.utils.SSLContextManager.getChannelSSLContext(SSLCon
textManager.java:234)
at weblogic.security.utils.SSLContextManager.getSSLServerSocketFactory(S
SLContextManager.java:89)
at weblogic.server.channels.DynamicSSLListenThread.<init>(DynamicSSLList
enThread.java:59)
at weblogic.server.channels.DynamicListenThreadManager.createListener(Dy
namicListenThreadManager.java:289)
at weblogic.server.channels.DynamicListenThreadManager.start(DynamicList
enThreadManager.java:129)
Truncated. see log file for complete stacktrace
>

Pandora message "Pandora believes your browser does not support modern SSL/TLS" and everything seems disabled on the site-how fix?

I have been using Firefox for a long time as my browser and typically play Pandora while at my office most days. For the first time today I received a pop up message "Pandora believes your browser does not support modern SSL/TLS. Consider upgrading your browswer" when I logged on to Pandora. I checked and I am on the latest version of Mozilla Firefox. I am unable to control volume or log out of Pandora now. I did some google searches and found Mozilla disabled ssl3.0 due to a "Poodle" attack. Does that mean that I can no longer use Firefox as my browser when I want to listen to music on Pandora or is there "a fix"? Thanks!

Mozilla Firefox as of Firefox 34 has the vulnerable SSL 3.0 disabled and only allows for TLS 1.0 at minimum to 1.2 now.
https://blog.mozilla.org/security/2014/10/14/the-poodle-attack-and-the-end-of-ssl-3-0/
So Pandora is incorrect if they believe Firefox is not safe to use.
Actually Pandora potentially needs to do a bit of upgrading themselves.
https://www.ssllabs.com/ssltest/analyze.html?d=www.pandora.com&s=208.85.40.50

ACE LOAD BALANCER - secure tls renegotiation

I have a cisco ace loadbalancer and a server farm behind it.
We have implemented sll-to-ssl termination, but we are facing certain problems with opera browser and android mobiles.
On both we get "The server does not support secure TLS renegoriation...."
Running the following: openssl s_client -connect aaa.bbb.ccc.ddd:443
On the load balancer we get:
New, TLSv1/SSLv3, Cipher is AES256-SHA
Server public key is 1024 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
SSL-Session:
    Protocol : TLSv1
    Cipher    : AES256-SHA
    Session-ID:
    Session-ID-ctx:
    Master-Key: xxxxxxxxx
    Key-Arg   : None
    Krb5 Principal: None
    Start Time: 1323349587
    Timeout   : 300 (sec)
    Verify return code: 21 (unable to verify the first certificate)
On one of the servers from the farm we get:
ew, TLSv1/SSLv3, Cipher is DHE-RSA-AES256-SHA
Server public key is 1024 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
SSL-Session:
    Protocol : TLSv1
    Cipher    : DHE-RSA-AES256-SHA
    Session-ID: yyyyyyy
    Session-ID-ctx:
    Master-Key: xxxxxxxx
    Key-Arg   : None
    Krb5 Principal: None
    Start Time: 1323349689
    Timeout   : 300 (sec)
    Verify return code: 0 (ok)
Is there any connection to our problem with this outputs ?
Does anyone have any idea on how to solve this problem ?
Thanks in advance

Hi Thanassis,
TLS renegotiation was disabled in all Cisco devices due to a vulnerability of the protocol. Check
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b01d1d.shtml for more details
Since the renegotiation was disabled for security reasons, there is no way to enable it back, so you should rather be looking for a way to force your browsers not to require this option to be enabled. I would suggest you to contact the Opera support team.
Regards
Daniel

Reporting services with R2 on DPM2012 - Could not establish trust relationship for the SSL/TLS secure channel

Hi everyone,
A somewhat similar question has been asked before by others but none of the answers given has helped me.I am attempting a DPM 2012 installation, which is failing at the "deploying reports" stage.My analysis of logs seems to point me in the direction of an SSL
error, which does not make sense since the configuration files say SSL is disabled (or at least, should be).
Here are the symptoms:
1.I am able to browse http://FQDN/Reports_MSDPM2012 folder from internet explorer
2.I am also able to browse http://FQDN/ReportServer_MSDPM2012 from internet explorer
3.The information given in the logs and relevant config files is shown below:
<<RSREPORTSERVER.CONFIG>>
<ConnectionType>Default</ConnectionType>
<LogonUser></LogonUser>
<LogonDomain></LogonDomain>
<LogonCred></LogonCred>
<InstanceId>MSRS10_50.MSDPM2012</InstanceId>
<InstallationID>{d9b1c335-5842-4a81-9148-79184c38bf09}</InstallationID>
<Add Key="SecureConnectionLevel" Value="0"/>
<Add Key="CleanupCycleMinutes" Value="10"/>
<Add Key="MaxActiveReqForOneUser" Value="20"/>
<Add Key="DatabaseQueryTimeout" Value="120"/>
<Add Key="RunningRequestsScavengerCycle" Value="60"/>
<Add Key="RunningRequestsDbCycle" Value="60"/>
<Add Key="RunningRequestsAge" Value="30"/>
<Add Key="MaxScheduleWait" Value="5"/>
<Add Key="DisplayErrorLink" Value="true"/>
<Add Key="WebServiceUseFileShareStorage" Value="false"/>





<Add Key="WatsonFlags" Value="0x0428"/>
<Add Key="WatsonDumpOnExceptions"
4.The DPM log file still appears to be using SSL even though i used reporting services configuration to remove SSL bindings:
running.Microsoft.Internal.EnterpriseStorage.Dls.Setup.Exceptions.BackEndErrorException: exception ---> Microsoft.Internal.EnterpriseStorage.Dls.Setup.Exceptions.ReportDeploymentException:
exception ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Net.WebException: The underlying connection was closed: Could
not establish trust relationship for the SSL/TLS secure channel. ---> System.Security.Authentication.AuthenticationException:
The remote certificate is invalid according to the validation procedure.
at System.Net.Security.SslState.StartSendAuthResetSignal(ProtocolToken message, AsyncProtocolRequest asyncRequest,
Exception exception)
5:I do have an SCCM site on the default web site used by SMS clients but on different ports
I am stumped.Somebody please give some advice
Thank you

Hi
This is an old post but did you come right?

Set-IRMConfiguration failed with error "Cou ld not establish trust relationship for the SSL/TLS secure channel."

Hi, experts
I'm trying to configure a lab environment according tutorial http://www.msexchange.org/articles-tutorials/exchange-server-2010/compliance-policies-archiving/rights-management-server-exchange-2010-part3.html
After completing configuration, I execute cmdlet Set-IRMConfiguration -InternalLicensingEnabled $true, but get error
The remote certificate is invalid according to the validation procedure. ---> The underlying connection was closed: Cou
ld not establish trust relationship for the SSL/TLS secure channel. ---> Failed to get Server Info from https://exhv-65
94/_wmcs/certification/server.asmx.
+ CategoryInfo : InvalidOperation: (:) [Set-IRMConfiguration], Exception
+ FullyQualifiedErrorId : C810E449,Microsoft.Exchange.Management.RightsManagement.SetIRMConfiguration
Then I run cmdlet Test-IRMConfiguration -Sender [email protected] and get error
Results : Checking Exchange Server ...
- PASS: Exchange Server is running in Enterprise.
Loading IRM configuration ...
- PASS: IRM configuration loaded successfully.
Retrieving RMS Certification Uri ...
- PASS: RMS Certification Uri: https://server1/_wmcs/certification.
Verifying RMS version for https://server1/_wmcs/certification ...
- WARNING: Failed to verify RMS version. IRM features require AD RMS on Windows Server 2008 SP2 with the
hotfixes specified in Knowledge Base article 973247 (http://go.microsoft.com/fwlink/?linkid=3052&kbid=973247)
or AD RMS on Windows Server 2008 R2.
Microsoft.Exchange.Security.RightsManagement.RightsManagementException: Failed to get Server Info from https:
//server1/_wmcs/certification/server.asmx. ---> System.Net.WebException: The underlying connection was clos
ed: Could not establish trust relationship for the SSL/TLS secure channel. ---> System.Security.Authenticatio
n.AuthenticationException: The remote certificate is invalid according to the validation procedure.
at System.Net.Security.SslState.StartSendAuthResetSignal(ProtocolToken message, AsyncProtocolRequest async
Request, Exception exception)
at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest async
Request)
at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest async
Request)
at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest async
Request)
at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequ
est asyncRequest)
at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Obje
ct state)
at System.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result)
at System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size)
at System.Net.PooledStream.Write(Byte[] buffer, Int32 offset, Int32 size)
at System.Net.ConnectStream.WriteHeaders(Boolean async)
--- End of inner exception stack trace ---
at System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request)
at System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at Microsoft.Exchange.Security.RightsManagement.SOAP.Server.ServerWS.GetServerInfo(ServerInfoRequest[] req
uests)
at Microsoft.Exchange.Security.RightsManagement.ServerWSManager.ValidateServiceVersion(String featureXPath
--- End of inner exception stack trace ---
at Microsoft.Exchange.Security.RightsManagement.ServerWSManager.ValidateServiceVersion(String featureXPath
at Microsoft.Exchange.Management.RightsManagement.IRMConfigurationValidator.ValidateRmsVersion(Uri uri, Se
rviceType serviceType)
at Microsoft.Exchange.Management.RightsManagement.IRMConfigurationValidator.TryGetRacAndClc()
OVERALL RESULT: PASS with warnings on disabled features
From the error message, this issue seem to related with SSL/TLS connection. So I go back to check configuration and find out a difference to tutorial. Current SCP url is https://server1/_wmcs/certification, but in tutorial it is https://server1:433/_wmcs/certification.
On my opinion, I don't think it is the real reason.
So, how can I resolve this error? Could you give me some suggestion? Thanks in advance.
System Info:
Windows Server 2008 R2 + Exchange Server 2010 SP3 RTM

Hi
Please have a try with the solution on this KB article
“Error message when you try to test access from the Microsoft Dynamics CRM E-mail Router: "Incoming Status: Failure - The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel"”
http://support.microsoft.com/kb/954584/en-us
Cheers
Zi Feng
TechNet Community Support

Disabling SSL on my Blackberry Pearl

Hoping someone can help me. I am wanting to do online banking on my Pearl, and cannot because it gives me an error message that my "SSL is disabled"--I have scanned the phone and options screen for SSL, but cannot figure out how to disable it. I have also looked through the user manual, but been unable to find it. Can anyone help me out and walk me through disabling this so that I can sign up for online banking?
Thanks!

The SSL / TLS settings is under Options, then Security Options, then TLS. The TLS default on my device say "Proxy" but you can change that to Handheld and play with the settings.

Disable SSL 3.0 in DSEE 7

Hello,
Is there a way to disable SSL 3.0 in DSEE 7, such that only TLS 1.0/1.1/1.2 can be used? I Googled for this and found MOS document 1950334.1, but the instructions in the document only apply to a DS proxy server.
Thanks,
Dave

Disabling SSLv3 by changing the encryption settings but it did not actually work. I loaded the LDIF and restarted the instance, and LDAP indicated that the change took effect:
root@ldap-test:/# ldapsearch -D "cn=Directory Manager" -w xxxxxxxx -b "cn=config" -s sub '(cn=encryption)'
version: 1
dn: cn=encryption,cn=config
objectClass: top
objectClass: nsEncryptionConfig
cn: encryption
nsSSLSessionTimeout: 0
nsSSLClientAuth: allowed
nsSSLServerAuth: cert
nsSSL2: off
nsKeyfile: alias/slapd-key3.db
nsCertfile: alias/slapd-cert8.db
nsSSL3Ciphers: all
nsSSL3: off
However, a test with openssl with the "-ssl3" option (forcing it to only use SSLv3) still connected:
$ /usr/local/openssl-1.0.1k/bin/openssl s_client -connect ldap-test.our-domain.edu:636 -ssl3
CONNECTED(00000003)
... <showed our server certificate, etc.> ...
If SSLv3 were actually disabled, that openssl test would have failed with an error. Disabling SSLv3 is required by our auditing tool because of the POODLE vulnerability, and a system cannot pass our audit unless SSLv2 and SSLv3 are disabled completely, but TLS 1.0/1.1/1.2 are still available.

How do you disable SSL\ CBC Ciphers and Weak Algorythms in Windows Server 2003

Hello, and please accept my humble thanks in advance.The problem that I'm having is the protocols listed below must be disabled on my Windows 2003 (IIS) Servers before we can pass a PCI audit. Now I've taken care of all of this on Windows 2008R2, but not
without days and nights of searching the internet for information that is not only clear to understand but accurate, however, I'm not having much luck with 2003.
Vulnerabilities:
SSL Server Supports CBC Ciphers for SSLv3
SSL Server Supports CBC Ciphers for TLSv1
SSL Server Supports RC4 Ciphers for SSLv3
SSL Server Supports RC4 Ciphers for TLSv1
SSL Server Supports Weak MAC Algorithms for SSLv3
SSL Server Supports Weak MAC Algorithms for TLSv1
Here's what I've tried, I've done the registry edit as follows, it did not work;
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL]
"EventLogging"=dword:00000001
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\DES 56/56]
"Enabled"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\NULL]
"Enabled"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC2 128/128]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC2 40/128]
"Enabled"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC4 128/128]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC4 40/128]
"Enabled"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC4 56/128]
"Enabled"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\Triple DES 168/168]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Hashes]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Hashes\MD5]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Hashes\SHA]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\KeyExchangeAlgorithms]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\KeyExchangeAlgorithms\Diffie-Hellman]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\KeyExchangeAlgorithms\PKCS]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\PCT 1.0]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\PCT 1.0\Client]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\PCT 1.0\Server]
"Enabled"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0\Client]
"Enabled"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0\Server]
"Enabled"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Client]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Server]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Client]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server]
Here's what I've tried, I've installed the Microsoft Security Bulletin MS12-006 - Important Vulnerability in SSL/TLS Could Allow Information Disclosure (2643584), it did not work for those issues but it did close the SSLv2.0 problem.
Is there ANY reason why the registry edit would not work?
Again, thank you.
Don
Also,
Has anyone seen or used this Hotfix... what is it and how would it relate to this issue.
An update is available to adds support for the TLS_RSA_WITH_AES_128_CBC_SHA AES128-SHA and the TLS_RSA_WITH_AES_256_CBC_SHA AES256-SHA AES cipher suites in Windows Server 2003
http://support.microsoft.com/kb/948963

Hi,
Hope we could find helpful information in the below KB:
How to restrict the use of certain cryptographic algorithms and protocols in Schannel.dll
http://support.microsoft.com/kb/245030
Please go through it.
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Regards, Yan Li

RDS 2012 issues after disabling SSL 3.0

Hi all, we have Server 2012 R2 RDS infrastructure. I have 2 servers running RD web, gateway, and conn broker using Windows network load balancing. 3 RDSH servers behind them handling user workload.
Last night I disabled SSL 3.0 on both of these servers using the registry key 'Enabled' set to zero in HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Server. Servers were rebooted after this change.
I did not disable SSL 3.0 on the RDSH servers yet, but I don't think it matters in this situation because the SSL traffic only passes between the remote computer and the RDGW server, AFAIK.
Today all the remote users were having issues with remote desktop sessions disconnecting them, but they would reconnect after a short time. They all told me this is unusual, normally the connections are quite stable. After I turned SSL 3.0 back on and rebooted,
no more issues, users are happy. Has anyone else experienced this? Is there anything that can be done to stabilize connections while SSL 3.0 is disabled?

Hi,
Thank you for posting in Windows Server Forum.
Did they receive any precise error when SSL3 is disabled?
What’s your client OS and RDP version using for your network?
If you would like to continue with SSL3 disabled you may try to change the RDP Security Layer under Security Layer.
When you are using RD Security Layer you are susceptible to MITM attack because there is no Server Authentication. I suggest you re-enable TLS 1.0 and have a ssl certificate from a public authority set on your RDP-Tcp listener.
You can also refer this article for other information.
Hope it helps!
Thanks.
Dharmesh Solanki
TechNet Community Support

Disable SSL v2 and weak cipers on a RV325 for PCI compliance

How do you disable SSL v2 and weak cipers on a RV325 to become PCI compliant?

Hello
per Cisco RVS4000 product site information this router is already end of life since January 30, 2010. Last date of support is also already missed - April 30, 2013. This means that according Cisco policy no further updates to existing firmware will be done - neither security-related fixes. And I am afraid that this is fact with which you have to deal.
regarding RV320 - it seems that there is no any possibility to restrict SSL/TLS protocol/version by your own in current version. Francis - I would recommend you to open service request to Cisco SMB Support if you still have valid support contract. I hope there is good chance to get it fixed as this security related inability.
lastly - for all products (including RVS4000) - I would suggest to keep management interface of router separated most as possible - i.e. restrict access to management interface only to single subnet/host(s) only (via Firewall feature). With having administration/management subnet and certain client(s) which is a part of this subnet can help to avoid eavesdropping your connection to router. Of course disabling remote management is the best thing you can do in any case (including avoid of possible firmware bugs, loggin attempts and so on).

I disabled SSL v3, now a POP3 connection is failing

I disabled SSL v3.0 to protect us from the Poodle vulnerability, now I find a vendor, providing a service deemed as critical, is unable to connect over POP3. It was working until Friday, when SSL v3.0 was disabled in the registry, since then the connection
has been failing. I have deleted the registry key I created to disable this, no change. Any ideas what I need to do to get this working again?
I am using Exchange 2013 on Server 2012 R2

Hi,
Disabling the use of SSL v3 on the client will prevent all clients to use SSL v3.0 to establish SSL channels, these will use TLS instead; the consequence of this is for services (applications servers) who don’t support TLS, who only rely
on SSL 3.0 for SSL encryption => clients/browsers without support of SSL v3.0 won’t be able to access services using SSL v3.0 only; they just won’t understand other SSL encryption protocols than SSL v3.0. For more information, please refer to:
Vulnerability in SSL 3.0 – Poodle attack and Exchange 2010 or Exchange 2013
Therefore, only if the application accessing uses only SSL 3.0 would be affected. Please contact your vendor which provide
a service deemed as critical to confirm if it has TLS enabled by default. Then you can change the POP3 connection to use TLS to have a try.
Regards,
Winnie Liang
TechNet Community Support

Disable ssl version2 on CSS

Hi all,
i know that SSL version3 by default is enabled on the CSS.
is there anyway to disable SSL version 2 ?
Please Advice
Hasan

Are you referring to the ssl module ?
Here is what we support on the module :
CSS11503-2(config-ssl-proxy-list[gdufour])# ssl-server 1 version ?
ssl-tls SSL v3 & TLS v1
tls TLS Version 1
ssl SSL Version 3
No ssl version 2.
Gilles.

Disable SSL/TLS renegotiation

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