請問大大
我使用nessus針對公司的ad主機做弱點掃描，報告出來是
SSL Version 2 and 3 Protocol Detection
再port 636 3269，AD管理員也去了SCHANEL裡的protocol把TLS1.2開啟了，但發現裡面的protocol只有SSL2.0跟TLS1.2

但我用namp掃的結果如下:
PORT STATE SERVICE
3269/tcp open
| ssl-enum-ciphers:
| SSLv3:
| ciphers:
| TLS_RSA_WITH_3DES_EDE_CBC_SHA (rsa 2048) - C
| TLS_RSA_WITH_RC4_128_SHA (rsa 2048) - C
| TLS_RSA_WITH_RC4_128_MD5 (rsa 2048) - C
| compressors:
| NULL
| cipher preference: server
| warnings:
| 64-bit block cipher 3DES vulnerable to SWEET32 attack
| Broken cipher RC4 is deprecated by RFC 7465
| CBC-mode cipher in SSLv3 (CVE-2014-3566)
| Ciphersuite uses MD5 for message integrity
| Weak certificate signature: SHA1
| TLSv1.0:
| ciphers:
| TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (secp256r1) - A
| TLS_DHE_RSA_WITH_AES_256_CBC_SHA (dh 1024) - A
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA (dh 1024) - A
| TLS_RSA_WITH_AES_256_CBC_SHA (rsa 2048) - A
| TLS_RSA_WITH_AES_128_CBC_SHA (rsa 2048) - A
| TLS_RSA_WITH_3DES_EDE_CBC_SHA (rsa 2048) - C
| TLS_RSA_WITH_RC4_128_SHA (rsa 2048) - C
| TLS_RSA_WITH_RC4_128_MD5 (rsa 2048) - C
| compressors:
| NULL
| cipher preference: server
| warnings:
| 64-bit block cipher 3DES vulnerable to SWEET32 attack
| Broken cipher RC4 is deprecated by RFC 7465
| Ciphersuite uses MD5 for message integrity
| Key exchange (dh 1024) of lower strength than certificate key
| Weak certificate signature: SHA1
| TLSv1.1:
| ciphers:
| TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (secp256r1) - A
| TLS_DHE_RSA_WITH_AES_256_CBC_SHA (dh 1024) - A
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA (dh 1024) - A
| TLS_RSA_WITH_AES_256_CBC_SHA (rsa 2048) - A
| TLS_RSA_WITH_AES_128_CBC_SHA (rsa 2048) - A
| TLS_RSA_WITH_3DES_EDE_CBC_SHA (rsa 2048) - C
| TLS_RSA_WITH_RC4_128_SHA (rsa 2048) - C
| TLS_RSA_WITH_RC4_128_MD5 (rsa 2048) - C
| compressors:
| NULL
| cipher preference: server
| warnings:
| 64-bit block cipher 3DES vulnerable to SWEET32 attack
| Broken cipher RC4 is deprecated by RFC 7465
| Ciphersuite uses MD5 for message integrity
| Key exchange (dh 1024) of lower strength than certificate key
| Weak certificate signature: SHA1
| TLSv1.2:
| ciphers:
| TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (secp256r1) - A
| TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (dh 1024) - A
| TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (dh 1024) - A
| TLS_DHE_RSA_WITH_AES_256_CBC_SHA (dh 1024) - A
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA (dh 1024) - A
| TLS_RSA_WITH_AES_256_GCM_SHA384 (rsa 2048) - A
| TLS_RSA_WITH_AES_128_GCM_SHA256 (rsa 2048) - A
| TLS_RSA_WITH_AES_256_CBC_SHA256 (rsa 2048) - A
| TLS_RSA_WITH_AES_128_CBC_SHA256 (rsa 2048) - A
| TLS_RSA_WITH_AES_256_CBC_SHA (rsa 2048) - A
| TLS_RSA_WITH_AES_128_CBC_SHA (rsa 2048) - A
| TLS_RSA_WITH_3DES_EDE_CBC_SHA (rsa 2048) - C
| TLS_RSA_WITH_RC4_128_SHA (rsa 2048) - C
| TLS_RSA_WITH_RC4_128_MD5 (rsa 2048) - C
| compressors:
| NULL
| cipher preference: server
| warnings:
| 64-bit block cipher 3DES vulnerable to SWEET32 attack
| Broken cipher RC4 is deprecated by RFC 7465
| Ciphersuite uses MD5 for message integrity
| Key exchange (dh 1024) of lower strength than certificate key
| Weak certificate signature: SHA1
|_ least strength: C

有幾個問題想請問
1.為啥麼windows2012 SCHANNEL裡的protocols只有SSL2.0跟TLS1.2
2.nmap掃出來的結果是有SSLV3,TLSV1,TLSV1.1,TLS1.2，是代表此主機現在開啟這四種加密版本嗎?
3.如果是的話，那為甚麼開啟SSL2.0,nmap沒有掃出來?
4.要關閉TLS1.2以外的版本才能修復這個弱點嗎?

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