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【中危】启用了不安全的TLS1.0、TLS1.1协议

文章目录

1. 漏洞描述

TLS 1.0是于1996年发布的老版协议，使用的是弱加密算法和系统。比如SHA-1和MD5，这些算法和系统十分脆弱，存在重大安全漏洞，容易受到降级攻击的严重影响。
服务端口漏洞名称修复建议nginx443TLS版本1.0协议检测启用对TLS 1.2或1.3的支持，并禁用对TLS 1.0的支持nginx443TLS版本1.1协议检测启用对TLS 1.2或1.3的支持，并禁用对TLS 1.1的支持

2. 补充学习

  • TLS全称为：Transport Layer Security——安全传输层协议，用于在两个通信应用程序之间提供保密性和数据完整性。
  • 该协议由两层组成： TLS 记录协议（TLS Record）和 TLS 握手协议（TLS Handshake）。较低的层为 TLS 记录协议，位于某个可靠的传输协议（例如 TCP）上面。在这里插入图片描述
  • TLS 的最大优势就在于：TLS 是独立于应用协议。高层协议可以透明地分布在 TLS 协议上面。

知识点小灶：TLS详解

3. 漏洞检测

使用nmap网络安全审计工具（kail中有集成）
检测命令：

nmap --script ssl-enum-ciphers -p 443 ip地址

>nmap --script ssl-enum-ciphers -p 443192.168.1.100
Starting Nmap 7.80( https://nmap.org ) at 2020-04-17 17:30 ?D1ú±ê×?ê±??
Nmap scan report for localhost (192.168.1.100)
Host is up (0.0089s latency).
 
PORT    STATE SERVICE
443/tcp open  https
| ssl-enum-ciphers:
|   TLSv1.0:
|     ciphers:
|       TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (ecdh_x25519) - A
|       TLS_RSA_WITH_AES_256_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (rsa 1024) - A
|     compressors:
|       NULL
|     cipher preference: server
|   TLSv1.1:
|     ciphers:
|       TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (ecdh_x25519) - A
|       TLS_RSA_WITH_AES_256_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (rsa 1024) - A
|     compressors:
|       NULL
|     cipher preference: server
|   TLSv1.2:
|     ciphers:
|       TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (ecdh_x25519) - A
|       TLS_RSA_WITH_AES_256_GCM_SHA384 (rsa 1024) - A
|       TLS_RSA_WITH_AES_256_CCM_8 (rsa 1024) - A
|       TLS_RSA_WITH_AES_256_CCM (rsa 1024) - A
|       TLS_RSA_WITH_ARIA_256_GCM_SHA384 (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_GCM_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_CCM_8 (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_CCM (rsa 1024) - A
|       TLS_RSA_WITH_ARIA_128_GCM_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_AES_256_CBC_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_CBC_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_AES_256_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (rsa 1024) - A
|     compressors:
|       NULL
|     cipher preference: server
|_  least strength: A
 
Nmap done: 1 IP address (1host up) scanned in5.55 seconds

4. 漏洞修复

采用2008年和2017年发布的协议新版本，分为TLS 1.2和TLS 1.3。

# 原始配置#ssl_protocols TLSv1 TLSv1.1 TLSv1.2 ;# 修复配置
ssl_protocols TLSv1.2 ;

# HTTPS server#
    server {
        listen       443 ssl;
        server_name  192.168.1.100;
        keepalive_timeout  70;
 
        ssl_certificate      cert/mycert.pem;
        ssl_certificate_key  cert/privatekey.pem;#ssl_certificate      cert/server.crt;#ssl_certificate_key  cert/server_rsa_private.pem.unsecure;
 
        ssl_session_cache    shared:SSL:1m;
        ssl_session_timeout  5m;#ssl_protocols TLSv1 TLSv1.1 TLSv1.2 ;
        ssl_protocols TLSv1.2 ;
        ssl_ciphers  HIGH:!aNULL:!MD5;
        ssl_prefer_server_ciphers  on;
 
        location / {
            root   html;
            index  index.html index.htm;}# 映射服务器集群
        location /test/{
            proxy_set_header  X-Real-IP        $remote_addr;
            proxy_pass http://test;}
        location /status{
            stub_status on;}}

漏洞复测

>nmap --script ssl-enum-ciphers -p 443192.168.1.100
Starting Nmap 7.80( https://nmap.org ) at 2020-04-17 17:32 ?D1ú±ê×?ê±??
Nmap scan report for localhost (192.168.1.100)
Host is up (0.011s latency).
 
PORT    STATE SERVICE
443/tcp open  https
| ssl-enum-ciphers:
|   TLSv1.2:
|     ciphers:
|       TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (ecdh_x25519) - A
|       TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (ecdh_x25519) - A
|       TLS_RSA_WITH_AES_256_GCM_SHA384 (rsa 1024) - A
|       TLS_RSA_WITH_AES_256_CCM_8 (rsa 1024) - A
|       TLS_RSA_WITH_AES_256_CCM (rsa 1024) - A
|       TLS_RSA_WITH_ARIA_256_GCM_SHA384 (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_GCM_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_CCM_8 (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_CCM (rsa 1024) - A
|       TLS_RSA_WITH_ARIA_128_GCM_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_AES_256_CBC_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_CBC_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 (rsa 1024) - A
|       TLS_RSA_WITH_AES_256_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_AES_128_CBC_SHA (rsa 1024) - A
|       TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (rsa 1024) - A
|     compressors:
|       NULL
|     cipher preference: server
|_  least strength: A
 
Nmap done: 1 IP address (1host up) scanned in5.01 seconds

5. 片尾彩蛋

道路注定很漫长，但如果一味地等待，就永远不会到达终点。——白岩松

标签： 安全漏洞 漏洞复现 漏洞检测
本文转载自: https://blog.csdn.net/qq_36292543/article/details/119672523
版权归原作者 天泽岁月 所有， 如有侵权，请联系我们删除。
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