Re: Advanced Security and SSL

I don't think this went through yesterday, so here it is again. In case anyone is curious, I solved this problem. It turns out the "Certificate Validation Failure" error was right on. The problem was that I had not set SSL_CLIENT_AUTHENTICATION = FALSE in the listener.ora file. Oddly enough this only seemed to be a problem going from Windows to AIX: I was able to connect from another AIX box just fine.

I do have another question. Does anyone know of a way to remove trusted certificates from an Oracle wallet from the command line? I know I can use orapki to add a trusted certificate, but I can find no way to remove them. It seems like an oversight to me.

On 9/26/07, Jason Heinrich <jheinrichdba_at_gmail.com> wrote:
> So has anybody seen this error before? Upgrading the client to 10.2.0.3
> didn't help (though I didn't expect it to).
>
>
> On 9/21/07, Jason Heinrich <jheinrichdba_at_gmail.com> wrote:
> >
> > List,
> > I'm attempting to setup SSL connectivity to a test database (10.2.0.1 on
> AIX 5.3), but I keep getting an error on the client ( 10.2.0.1 on Windows
> XP): ORA-28860: Fatal SSL error.
> >
> > I've checked the sqlnet.ora files to make sure they match, and I've
> checked the wallets to make sure the trusted certificate on the client
> matches the signer for the server certificate. A client trace didn't give
> any useful information, but a trace of the listener on the server revealed
> this:
> > ntzdosecneg: SSL handshake failed with error 29024
> >
> > Of course, useful information about these errors seems sparse. If that's
> an ORA error, then it would refer to a "Certificate validation failure",
> which doesn't make sense because the client shouldn't be sending a
> certificate to the server. I've included relavent portions of config files
> below for reference:
> >
> > Client sqlnet.ora:
> > SSL_VERSION = 3.0
> > SSL_CLIENT_AUTHENTICATION = FALSE
> > SSL_SERVER_DN_MATCH = No
> > SSL_CIPHER_SUITES=(SSL_RSA_WITH_AES_256_CBC_SHA,
> SSL_RSA_WITH_AES_128_CBC_SHA, SSL_RSA_WITH_3DES_EDE_CBC_SHA)
> >
> > Server sqlnet.ora:
> > TCP.VALIDNODE_CHECKING=YES
> > TCP.INVITED_NODES=(<list of ip addresses, including the client>)
> > SSL_CIPHER_SUITES=(SSL_RSA_WITH_AES_256_CBC_SHA,
> SSL_RSA_WITH_AES_128_CBC_SHA, SSL_RSA_WITH_3DES_EDE_CBC_SHA)
> > SSL_VERSION=3.0
> > SSL_CLIENT_AUTHENTICATION=FALSE
> >
> > TCPS is set as the protocol in the server's listener.ora and client's
> tnsnames.ora. Interestingly enough, I have no trouble connecting to the
> database via TCPS while on the server. Any ideas?

-- 
Jason Heinrich
Oracle Developer/DBA
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