diff options
Diffstat (limited to 'lib/vssh/libssh.c')
| -rw-r--r-- | lib/vssh/libssh.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/lib/vssh/libssh.c b/lib/vssh/libssh.c index 647b4d49..08d9f9e0 100644 --- a/lib/vssh/libssh.c +++ b/lib/vssh/libssh.c @@ -345,13 +345,27 @@ static int myssh_is_known(struct connectdata *conn) return rc; if(data->set.str[STRING_SSH_HOST_PUBLIC_KEY_MD5]) { + int i; + char md5buffer[33]; + const char *pubkey_md5 = data->set.str[STRING_SSH_HOST_PUBLIC_KEY_MD5]; + rc = ssh_get_publickey_hash(pubkey, SSH_PUBLICKEY_HASH_MD5, &hash, &hlen); - if(rc != SSH_OK) + if(rc != SSH_OK || hlen != 16) { + failf(data, + "Denied establishing ssh session: md5 fingerprint not available"); goto cleanup; + } + + for(i = 0; i < 16; i++) + msnprintf(&md5buffer[i*2], 3, "%02x", (unsigned char)hash[i]); + + infof(data, "SSH MD5 fingerprint: %s\n", md5buffer); - if(hlen != strlen(data->set.str[STRING_SSH_HOST_PUBLIC_KEY_MD5]) || - memcmp(&data->set.str[STRING_SSH_HOST_PUBLIC_KEY_MD5], hash, hlen)) { + if(!strcasecompare(md5buffer, pubkey_md5)) { + failf(data, + "Denied establishing ssh session: mismatch md5 fingerprint. " + "Remote %s is not equal to %s", md5buffer, pubkey_md5); rc = SSH_ERROR; goto cleanup; } |