How to Disable Ciphers at JRE Level for SSH Access to ASC
(Doc ID 2192338.1)
Last updated on SEPTEMBER 17, 2020
Applies to:Oracle Communications Application Session Controller - Version S-E3.7.0 and later
Acme Packet OS
SSH connections to the ASC may fail with an error of An error occurred during a connection to <hostname>. SSL received a weak ephemeral Diffie-Hellman key in a Server Key Exchange handshake message. (Error code: ssl_error_weak_server_ephemeral_dh_key)
Those strings include ciphers that use Diffie-Hellman ("DHE"), and most browsers now block those because they're vulnerable to Logjam attacks. That's why you're seeing the exact same error: the default list (when no cipher config string is set) has some DHE ciphers included in it.
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