本次弱掃出現很多台几器有相同的問題
Vulnerability Detection Result
'Vulnerable' cipher suites accepted by this service via the TLSv1.0 protocol:
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (SWEET32)
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (SWEET32)
TLS_RSA_WITH_3DES_EDE_CBC_SHA (SWEET32)
'Vulnerable' cipher suites accepted by this service via the TLSv1.1 protocol:
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (SWEET32)
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (SWEET32)
TLS_RSA_WITH_3DES_EDE_CBC_SHA (SWEET32)
'Vulnerable' cipher suites accepted by this service via the TLSv1.2 protocol:
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (SWEET32)
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (SWEET32)
TLS_RSA_WITH_3DES_EDE_CBC_SHA (SWEET32)
處理方法如下
vi /etc/httpd/conf.d
修改如下
#SSLProtocol all -SSLv2 -SSLv3
SSLProtocol all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1
# SSL Cipher Suite:
# List the ciphers that the client is permitted to negotiate.
# See the mod_ssl documentation for a complete list.
#SSLCipherSuite HIGH:3DES:!aNULL:!MD5:!SEED:!IDEA
SSLCipherSuite HIGH:!3DES:!aNULL:!MD5:!SEED:!IDEA
改完後 restart
systemctl restart httpd
以nmap進行測試
nmap --script ssl-enum-ciphers -p 443 10.0.0.1
Starting Nmap 7.80 ( https://nmap.org ) at 2022-01-01 13:54 CST
Nmap scan report for www.nkuht.edu.tw (10.0.0.1)
Host is up (0.00029s latency).
PORT STATE SERVICE
443/tcp open https
| ssl-enum-ciphers:
| TLSv1.2:
| ciphers:
| TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (secp256r1) - A
| TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (dh 2048) - A
| TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (dh 2048) - A
| TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (secp256r1) - A
| TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (dh 2048) - A
| TLS_DHE_RSA_WITH_AES_256_CBC_SHA (dh 2048) - A
| TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (secp256r1) - A
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (dh 2048) - A
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA (dh 2048) - 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_256_CBC_SHA (rsa 2048) - A
| TLS_RSA_WITH_AES_128_CBC_SHA256 (rsa 2048) - A
| TLS_RSA_WITH_AES_128_CBC_SHA (rsa 2048) - A
| compressors:
| NULL
| cipher preference: server
|_ least strength: A
Nmap done: 1 IP address (1 host up) scanned in 0.58 seconds
