Spring Boot Actuator - Heap Dump Detection

ID: springboot-heapdump

Severity: critical

Author: that_juan_,dwisiswant0,wdahlenb

Tags: springboot,exposure,misconfig

Description

A Spring Boot Actuator heap dump was detected. A heap dump is a snapshot of JVM memory, which could expose environment variables and HTTP requests.

YAML Source

id: springboot-heapdump

info:
  name: Spring Boot Actuator - Heap Dump Detection
  author: that_juan_,dwisiswant0,wdahlenb
  severity: critical
  description: |
    A Spring Boot Actuator heap dump was detected. A heap dump is a snapshot of JVM memory, which could expose environment variables and HTTP requests.
  reference:
    - https://github.com/pyn3rd/Spring-Boot-Vulnerability
  metadata:
    max-request: 3
  tags: springboot,exposure,misconfig
variables:
  str: "{{rand_base(6)}}"

http:
  - raw:
      - |
        GET /{{str}} HTTP/1.1
        Host: {{Hostname}}
      - |
        GET /heapdump HTTP/1.1
        Host: {{Hostname}}
      - |
        GET /actuator/heapdump HTTP/1.1
        Host: {{Hostname}}

    max-size: 2097152 # 2MB - Max Size to read from server response

    matchers-condition: or
    matchers:
      - type: dsl
        dsl:
          - "!contains(hex_encode(body_1), '1f8b080000000000')"
          - "contains(hex_encode(body_2), '1f8b080000000000')"
        condition: and

      - type: dsl
        dsl:
          - "!contains(hex_encode(body_1), '1f8b080000000000')"
          - "contains(hex_encode(body_3), '1f8b080000000000')"
        condition: and

      - type: dsl
        dsl:
          - "contains(hex_encode(body_2), '4a4156412050524f46494c45') || contains(hex_encode(body_2), '4850524f46')"
          - "contains(hex_encode(body_3), '4a4156412050524f46494c45') || contains(hex_encode(body_3), '4850524f46')"
        condition: or
# digest: 4a0a00473045022007474d1dec23aaaec4c7ba7c006a537230276c4baa7e697ea2eb641e39309e240221009b07c8bf23cfb7390d01c60795fda8546e4b41262672881f9a36fd9cb48905e8:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "http/misconfiguration/springboot/springboot-heapdump.yaml"

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