Ignore unknown host key type.

jliebster · Feb 3, 2022 · 2244b03 · 2244b03
1 parent 78e810f
commit 2244b03
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/ssh/src/main/java/ch/cyberduck/core/sftp/openssh/OpenSSHHostKeyVerifier.java b/ssh/src/main/java/ch/cyberduck/core/sftp/openssh/OpenSSHHostKeyVerifier.java
@@ -133,8 +133,14 @@ public void allow(final Host host, final PublicKey key, final boolean persist) {
         else {
             try {
                 // Add the host key to the in-memory database
+                final KeyType type = KeyType.fromKey(key);
+                switch(type) {
+                    case UNKNOWN:
+                        log.warn(String.format("Unknown key type %s", key));
+                        return;
+                }
                 final OpenSSHKnownHosts.HostEntry entry
-                    = new OpenSSHKnownHosts.HostEntry(null, format(host), KeyType.fromKey(key), key);
+                        = new OpenSSHKnownHosts.HostEntry(null, format(host), type, key);
                 database.entries().add(entry);
                 if(persist) {
                     if(file.attributes().getPermission().isWritable()) {