openssh.unsupported events

Contributors

openssh.unsupported.cipher

Severity

ERROR

Description

This message occurs when an unsupported cipher is used while attempting an SSH connection.

Corrective Action

Attempt to connect with SSH by using a supported cipher.

Syslog Message

Attempted an SSH connection using unsupported cipher %s.

Parameters

ciphername (STRING): Cipher used for the SSH connection.

openssh.unsupported.hostalgo

Severity

ERROR

Description

This message occurs when an unsupported host key algorithm is used while attempting an SSH connection.

Corrective Action

Attempt to connect with SSH by using a supported host key algorithm.

Syslog Message

SSH connection from %s was attempted using an unsupported host key algorithm %s.

Parameters

ipaddress (STRING): IP address of the remote host that was trying to establish an SSH connection.
hostkeyalgorithm (STRING): Host key algorithm used for the SSH connection attempt.

openssh.unsupported.kexalgo

Severity

ERROR

Description

This message occurs when an unsupported key exchange algorithm is used while attempting an SSH connection.

Corrective Action

Attempt to connect with SSH by using a supported key exchange algorithm.

Syslog Message

Attempted an SSH connection using unsupported key exchange algorithm %s.

Parameters

kexalgorithm (STRING): Key exchange algorithm used for the SSH connection.

openssh.unsupported.MAC

Severity

ERROR

Description

This message occurs when an unsupported Message Authentication Code (MAC) is used while attempting an SSH connection.

Corrective Action

Attempt to connect with SSH by using a supported MAC.

Syslog Message

Attempted an SSH connection using unsupported MAC %s.

Parameters

macname (STRING): MAC used for the SSH connection.