CVE-2021-25646: Druid Code Injection Vulnerability

HIGH
Advisory Identifier: GHSA-wrqf-rrrw-w3mg
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CVSS 8.8
CWE-732
Published
Advisory Summary

CVE-2021-25646 is a HIGH (CVSS 8.8) code injection vulnerability (CWE-732: Incorrect Permission Assignment for Critical Resource) affecting Druid libraries in the Maven ecosystem. The issue involves code injection in apache druid. Remediation is available by upgrading affected packages to version 0.20.1.

CVE-2021-25646 at a Glance

CVE Identifier CVE-2021-25646
GHSA Identifier GHSA-wrqf-rrrw-w3mg
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-732: Incorrect Permission Assignment for Critical Resource
Affected Product Druid
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2021-25646

To remediate this vulnerability, upgrade all affected Druid dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.druid:druid fixed: 0.20.1 
<dependency>
    <groupId>org.apache.druid</groupId>
    <artifactId>druid</artifactId>
    <version>0.20.1</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.druid

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2021-25646, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.druid

Analyze the terminal output to locate any version of Druid in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.20.1), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.druid command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-732: Incorrect Permission Assignment for Critical Resource, where the product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. In Druid, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Apache Druid includes the ability to execute user-provided JavaScript code embedded in various types of requests. This functionality is intended for use in high-trust environments, and is disabled by default. However, in Druid 0.20.0 and earlier, it is possible for an authenticated user to send a specially-crafted request that forces Druid to run user-provided JavaScript code for that request, regardless of server configuration. This can be leveraged to execute code on the target machine with the privileges of the Druid server process.

CVE-2021-25646 Affected Druid Versions

1 component(s)
Fixed Versions:
0.20.1
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.druid:druid
maven/org.apache.druid/druid
Maven
< 0.20.1
0.20.1

References

NVD — CVE-2021-25646 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-25646
lists.apache.org/thread.html/r04fa1b... WEB
https://lists.apache.org/thread.html/r04fa1ba93599487c95a8497044d37f8c02a439bfcf92b4567bfb7c8f@%3Ccommits.druid.apache.org%3E
lists.apache.org/thread.html/r121abe... WEB
https://lists.apache.org/thread.html/r121abe8014d381943b63c60615149d40bde9dc1c868bcee90d0d0848@%3Ccommits.druid.apache.org%3E
lists.apache.org/thread.html/r20e0c3... WEB
https://lists.apache.org/thread.html/r20e0c3b10ae2c05a3aad40f1476713c45bdefc32c920b9986b941d8f@%3Cannounce.apache.org%3E
lists.apache.org/thread.html/r443e29... WEB
https://lists.apache.org/thread.html/r443e2916c612fbd119839c0fc0729327d6031913a75081adac5b43ad@%3Cdev.druid.apache.org%3E
lists.apache.org/thread.html/r4f84b5... WEB
https://lists.apache.org/thread.html/r4f84b542417ea46202867c0a8b3eaf3b4cfed30e09174a52122ba210@%3Ccommits.druid.apache.org%3E
lists.apache.org/thread.html/r5ef625... WEB
https://lists.apache.org/thread.html/r5ef625076982aee7d23c23f07717e626b73f421fba5154d1e4de15e1@%3Ccommits.druid.apache.org%3E
lists.apache.org/thread.html/r64431c... WEB
https://lists.apache.org/thread.html/r64431c2b97209f566b5dff92415e7afba0ed3bfab4695ebaa8a62e5d@%3Cdev.druid.apache.org%3E
lists.apache.org/thread.html/r7dff47... WEB
https://lists.apache.org/thread.html/r7dff4790e7a5c697fc0360adf11f5aeb31cd6ad80644fffee690673c@%3Ccommits.druid.apache.org%3E
lists.apache.org/thread.html/r87aa94... WEB
https://lists.apache.org/thread.html/r87aa94e28dd21ee2252d30c63f01ab9cb5474ee5bdd98dd8d7d734aa@%3Ccommits.druid.apache.org%3E
lists.apache.org/thread.html/ra42259... WEB
https://lists.apache.org/thread.html/ra4225912f501016bc5e0ac44e14b8d6779173a3a1dc7baacaabcc9ba@%3Ccommits.druid.apache.org%3E
lists.apache.org/thread.html/rc167d5... WEB
https://lists.apache.org/thread.html/rc167d5e57f3120578718a7a458ce3e73b3830ac4efbb1b085bd06b92@%3Cdev.druid.apache.org%3E
lists.apache.org/thread.html/rea9436... WEB
https://lists.apache.org/thread.html/rea9436a4063927a567d698431ddae55e760c3f876c22ac5b9813685f@%3Ccommits.druid.apache.org%3E
lists.apache.org/thread.html/rfda8a3... WEB
https://lists.apache.org/thread.html/rfda8a3aa6ac06a80c5cbfdeae0fc85f88a5984e32ea05e6dda46f866%40%3Cdev.druid.apache.org%3E
lists.apache.org/thread.html/rfeb775... WEB
https://lists.apache.org/thread.html/rfeb775822cd3baef1595b60f6860f5ca849eb1903236483f3297bd5c@%3Ccommits.druid.apache.org%3E
Druid Security Information SECURITY
http://packetstormsecurity.com/files/162345/Apache-Druid-0.20.0-Remote-Command-Execution.html
Druid Security Information SECURITY
http://www.openwall.com/lists/oss-security/2021/01/29/6

Frequently Asked Questions

What is CVE-2021-25646?
CVE-2021-25646 is a security vulnerability in Druid involving Code injection in Apache Druid under CWE-732: Incorrect Permission Assignment for Critical Resource.
Which Druid versions are affected?
Affected versions include releases prior to 0.20.1 across affected packages: org.apache.druid:druid.
What version fixes CVE-2021-25646?
Upgrading to 0.20.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is druid affected?
Yes, org.apache.druid:druid is affected in releases prior to 0.20.1. Upgrade your dependency to 0.20.1 or later.
What is the CVSS score of CVE-2021-25646?
CVE-2021-25646 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2021-25646?
CVE-2021-25646 is classified under CWE-732: Incorrect Permission Assignment for Critical Resource (The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.).
How can I check Maven dependencies for CVE-2021-25646?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.druid'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-wrqf-rrrw-w3mg",
  "modified" : "2021-04-05T21:52:53Z",
  "published" : "2021-06-16T17:40:47Z",
  "aliases" : [ "CVE-2021-25646" ],
  "summary" : "Code injection in Apache Druid",
  "details" : "Apache Druid includes the ability to execute user-provided JavaScript code embedded in various types of requests. This functionality is intended for use in high-trust environments, and is disabled by default. However, in Druid 0.20.0 and earlier, it is possible for an authenticated user to send a specially-crafted request that forces Druid to run user-provided JavaScript code for that request, regardless of server configuration. This can be leveraged to execute code on the target machine with the privileges of the Druid server process.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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    "package" : {
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    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
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        "fixed" : "0.20.1"
      } ]
    } ]
  } ],
  "references" : [ {
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  }, {
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  }, {
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  }, {
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  }, {
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  }, {
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  }, {
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  }, {
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  }, {
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  "database_specific" : {
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  }
}