{
    "additional_notes": [],
    "banner": {
        "comments": null,
        "protocol": "2.0",
        "raw": "SSH-2.0-OpenSSH_5.6",
        "software": "OpenSSH_5.6"
    },
    "compression": [
        "none",
        "zlib@openssh.com"
    ],
    "cves": [],
    "enc": [
        {
            "algorithm": "aes128-ctr",
            "notes": {
                "info": [
                    "available since OpenSSH 3.7, Dropbear SSH 0.52"
                ]
            }
        },
        {
            "algorithm": "aes192-ctr",
            "notes": {
                "info": [
                    "available since OpenSSH 3.7"
                ]
            }
        },
        {
            "algorithm": "aes256-ctr",
            "notes": {
                "info": [
                    "available since OpenSSH 3.7, Dropbear SSH 0.52"
                ]
            }
        },
        {
            "algorithm": "arcfour256",
            "notes": {
                "fail": [
                    "using broken RC4 cipher"
                ],
                "info": [
                    "available since OpenSSH 4.2"
                ]
            }
        },
        {
            "algorithm": "arcfour128",
            "notes": {
                "fail": [
                    "using broken RC4 cipher"
                ],
                "info": [
                    "available since OpenSSH 4.2"
                ]
            }
        },
        {
            "algorithm": "aes128-cbc",
            "notes": {
                "info": [
                    "available since OpenSSH 2.3.0, Dropbear SSH 0.28"
                ],
                "warn": [
                    "using weak cipher mode"
                ]
            }
        },
        {
            "algorithm": "3des-cbc",
            "notes": {
                "fail": [
                    "using broken & deprecated 3DES cipher"
                ],
                "info": [
                    "available since OpenSSH 1.2.2, Dropbear SSH 0.28"
                ],
                "warn": [
                    "using weak cipher mode",
                    "using small 64-bit block size"
                ]
            }
        },
        {
            "algorithm": "blowfish-cbc",
            "notes": {
                "fail": [
                    "using weak & deprecated Blowfish cipher"
                ],
                "info": [
                    "available since OpenSSH 1.2.2, Dropbear SSH 0.28"
                ],
                "warn": [
                    "using weak cipher mode",
                    "using small 64-bit block size"
                ]
            }
        },
        {
            "algorithm": "cast128-cbc",
            "notes": {
                "fail": [
                    "using weak & deprecated CAST cipher"
                ],
                "info": [
                    "available since OpenSSH 2.1.0"
                ],
                "warn": [
                    "using weak cipher mode",
                    "using small 64-bit block size"
                ]
            }
        },
        {
            "algorithm": "aes192-cbc",
            "notes": {
                "info": [
                    "available since OpenSSH 2.3.0"
                ],
                "warn": [
                    "using weak cipher mode"
                ]
            }
        },
        {
            "algorithm": "aes256-cbc",
            "notes": {
                "info": [
                    "available since OpenSSH 2.3.0, Dropbear SSH 0.47"
                ],
                "warn": [
                    "using weak cipher mode"
                ]
            }
        },
        {
            "algorithm": "arcfour",
            "notes": {
                "fail": [
                    "using broken RC4 cipher"
                ],
                "info": [
                    "available since OpenSSH 2.1.0"
                ]
            }
        },
        {
            "algorithm": "rijndael-cbc@lysator.liu.se",
            "notes": {
                "fail": [
                    "using deprecated & non-standardized Rijndael cipher"
                ],
                "info": [
                    "disabled in OpenSSH 7.0: https://www.openssh.com/txt/release-7.0",
                    "available since OpenSSH 2.3.0"
                ],
                "warn": [
                    "using weak cipher mode"
                ]
            }
        }
    ],
    "fingerprints": [
        {
            "hash": "nsWtdJ9Z67Vrf7OsUzQov7esXhsWAfVppArGh25u244",
            "hash_alg": "SHA256",
            "hostkey": "ssh-rsa"
        },
        {
            "hash": "18:e2:51:fe:21:6c:78:d0:b8:cf:32:d4:bd:56:42:e1",
            "hash_alg": "MD5",
            "hostkey": "ssh-rsa"
        }
    ],
    "kex": [
        {
            "algorithm": "diffie-hellman-group-exchange-sha256",
            "keysize": 1024,
            "notes": {
                "fail": [
                    "using small 1024-bit modulus"
                ],
                "info": [
                    "available since OpenSSH 4.4"
                ],
                "warn": [
                    "does not provide protection against post-quantum attacks"
                ]
            }
        },
        {
            "algorithm": "diffie-hellman-group-exchange-sha1",
            "keysize": 1024,
            "notes": {
                "fail": [
                    "using small 1024-bit modulus"
                ],
                "info": [
                    "available since OpenSSH 2.3.0"
                ],
                "warn": [
                    "does not provide protection against post-quantum attacks"
                ]
            }
        },
        {
            "algorithm": "diffie-hellman-group14-sha1",
            "notes": {
                "fail": [
                    "using broken SHA-1 hash algorithm"
                ],
                "info": [
                    "available since OpenSSH 3.9, Dropbear SSH 0.53"
                ],
                "warn": [
                    "2048-bit modulus only provides 112-bits of symmetric strength",
                    "does not provide protection against post-quantum attacks"
                ]
            }
        },
        {
            "algorithm": "diffie-hellman-group1-sha1",
            "notes": {
                "fail": [
                    "using small 1024-bit modulus",
                    "vulnerable to the Logjam attack: https://en.wikipedia.org/wiki/Logjam_(computer_security)",
                    "using broken SHA-1 hash algorithm"
                ],
                "info": [
                    "removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9",
                    "available since OpenSSH 2.3.0, Dropbear SSH 0.28"
                ],
                "warn": [
                    "does not provide protection against post-quantum attacks"
                ]
            }
        }
    ],
    "key": [
        {
            "algorithm": "ssh-rsa",
            "keysize": 3072,
            "notes": {
                "fail": [
                    "using broken SHA-1 hash algorithm"
                ],
                "info": [
                    "deprecated in OpenSSH 8.8: https://www.openssh.com/txt/release-8.8",
                    "available since OpenSSH 2.5.0, Dropbear SSH 0.28"
                ]
            }
        },
        {
            "algorithm": "ssh-rsa-cert-v01@openssh.com",
            "ca_algorithm": "ssh-rsa",
            "casize": 1024,
            "keysize": 3072,
            "notes": {
                "fail": [
                    "using broken SHA-1 hash algorithm",
                    "using small 1024-bit CA key modulus"
                ],
                "info": [
                    "deprecated in OpenSSH 8.8: https://www.openssh.com/txt/release-8.8",
                    "available since OpenSSH 5.6"
                ]
            }
        }
    ],
    "mac": [
        {
            "algorithm": "hmac-md5",
            "notes": {
                "fail": [
                    "using broken MD5 hash algorithm"
                ],
                "info": [
                    "available since OpenSSH 2.1.0, Dropbear SSH 0.28"
                ],
                "warn": [
                    "using encrypt-and-MAC mode"
                ]
            }
        },
        {
            "algorithm": "hmac-sha1",
            "notes": {
                "fail": [
                    "using broken SHA-1 hash algorithm"
                ],
                "info": [
                    "available since OpenSSH 2.1.0, Dropbear SSH 0.28"
                ],
                "warn": [
                    "using encrypt-and-MAC mode"
                ]
            }
        },
        {
            "algorithm": "umac-64@openssh.com",
            "notes": {
                "info": [
                    "available since OpenSSH 4.7"
                ],
                "warn": [
                    "using encrypt-and-MAC mode",
                    "using small 64-bit tag size"
                ]
            }
        },
        {
            "algorithm": "hmac-ripemd160",
            "notes": {
                "fail": [
                    "using deprecated RIPEMD hash algorithm"
                ],
                "info": [
                    "available since OpenSSH 2.5.0"
                ],
                "warn": [
                    "using encrypt-and-MAC mode"
                ]
            }
        },
        {
            "algorithm": "hmac-ripemd160@openssh.com",
            "notes": {
                "fail": [
                    "using deprecated RIPEMD hash algorithm"
                ],
                "info": [
                    "available since OpenSSH 2.1.0"
                ],
                "warn": [
                    "using encrypt-and-MAC mode"
                ]
            }
        },
        {
            "algorithm": "hmac-sha1-96",
            "notes": {
                "fail": [
                    "using broken SHA-1 hash algorithm"
                ],
                "info": [
                    "available since OpenSSH 2.5.0, Dropbear SSH 0.47"
                ],
                "warn": [
                    "using encrypt-and-MAC mode"
                ]
            }
        },
        {
            "algorithm": "hmac-md5-96",
            "notes": {
                "fail": [
                    "using broken MD5 hash algorithm"
                ],
                "info": [
                    "available since OpenSSH 2.5.0"
                ],
                "warn": [
                    "using encrypt-and-MAC mode"
                ]
            }
        }
    ],
    "recommendations": {
        "critical": {
            "chg": {
                "kex": [
                    {
                        "name": "diffie-hellman-group-exchange-sha256",
                        "notes": "increase modulus size to 3072 bits or larger"
                    }
                ]
            },
            "del": {
                "enc": [
                    {
                        "name": "3des-cbc",
                        "notes": ""
                    },
                    {
                        "name": "arcfour128",
                        "notes": ""
                    },
                    {
                        "name": "arcfour",
                        "notes": ""
                    },
                    {
                        "name": "arcfour256",
                        "notes": ""
                    },
                    {
                        "name": "blowfish-cbc",
                        "notes": ""
                    },
                    {
                        "name": "cast128-cbc",
                        "notes": ""
                    },
                    {
                        "name": "rijndael-cbc@lysator.liu.se",
                        "notes": ""
                    }
                ],
                "kex": [
                    {
                        "name": "diffie-hellman-group14-sha1",
                        "notes": ""
                    },
                    {
                        "name": "diffie-hellman-group1-sha1",
                        "notes": ""
                    },
                    {
                        "name": "diffie-hellman-group-exchange-sha1",
                        "notes": ""
                    }
                ],
                "key": [
                    {
                        "name": "ssh-rsa",
                        "notes": ""
                    },
                    {
                        "name": "ssh-rsa-cert-v01@openssh.com",
                        "notes": ""
                    }
                ],
                "mac": [
                    {
                        "name": "hmac-md5",
                        "notes": ""
                    },
                    {
                        "name": "hmac-md5-96",
                        "notes": ""
                    },
                    {
                        "name": "hmac-ripemd160",
                        "notes": ""
                    },
                    {
                        "name": "hmac-ripemd160@openssh.com",
                        "notes": ""
                    },
                    {
                        "name": "hmac-sha1",
                        "notes": ""
                    },
                    {
                        "name": "hmac-sha1-96",
                        "notes": ""
                    }
                ]
            }
        },
        "warning": {
            "del": {
                "enc": [
                    {
                        "name": "aes128-cbc",
                        "notes": ""
                    },
                    {
                        "name": "aes192-cbc",
                        "notes": ""
                    },
                    {
                        "name": "aes256-cbc",
                        "notes": ""
                    }
                ],
                "mac": [
                    {
                        "name": "umac-64@openssh.com",
                        "notes": ""
                    }
                ]
            }
        }
    },
    "target": "localhost:2222"
}