CVE-2021-39235: Ozone main Incorrect Permissions Vulnerability

MODERATE
Advisory Identifier: GHSA-c6j7-4fr9-c76p
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CVSS 6.5
CWE-732
Published
Advisory Summary

CVE-2021-39235 is a MODERATE (CVSS 6.5) incorrect permissions vulnerability (CWE-732: Incorrect Permission Assignment for Critical Resource) affecting Ozone main libraries in the Maven ecosystem. The issue involves incorrect permissions in apache ozone. Remediation is available by upgrading affected packages to version 1.2.0.

CVE-2021-39235 at a Glance

CVE Identifier CVE-2021-39235
GHSA Identifier GHSA-c6j7-4fr9-c76p
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-732: Incorrect Permission Assignment for Critical Resource
Affected Product Ozone main
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

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:N/I:H/A:N).

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 None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2021-39235

To remediate this vulnerability, upgrade all affected Ozone main 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.ozone:ozone-main fixed: 1.2.0 
<dependency>
    <groupId>org.apache.ozone</groupId>
    <artifactId>ozone-main</artifactId>
    <version>1.2.0</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.ozone

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2021-39235, inspect your build dependencies using the Maven Dependency Plugin:

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

Analyze the terminal output to locate any version of Ozone main in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.2.0), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.ozone 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 Ozone main, 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

In Apache Ozone before 1.2.0, Ozone Datanode doesn't check the access mode parameter of the block token. Authenticated users with valid READ block token can do any write operation on the same block.

CVE-2021-39235 Affected Ozone main Versions

1 component(s)
Fixed Versions:
1.2.0
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.ozone:ozone-main
maven/org.apache.ozone/ozone-main
Maven
< 1.2.0
1.2.0

References

NVD — CVE-2021-39235 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39235
Ozone main Source Repository REPOSITORY
https://github.com/apache/ozone
mail-archives.apache.org/mod_mbox/ozone-dev/... WEB
https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C93f88246-4320-7423-0dac-ec7a07f47455%40apache.org%3E
Ozone main Security Information SECURITY
http://www.openwall.com/lists/oss-security/2021/11/19/6

Frequently Asked Questions

What is CVE-2021-39235?
CVE-2021-39235 is a security vulnerability in Ozone main involving Incorrect permissions in Apache Ozone under CWE-732: Incorrect Permission Assignment for Critical Resource.
Which Ozone main versions are affected?
Affected versions include releases prior to 1.2.0 across affected packages: org.apache.ozone:ozone-main.
What version fixes CVE-2021-39235?
Upgrading to 1.2.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ozone-main affected?
Yes, org.apache.ozone:ozone-main is affected in releases prior to 1.2.0. Upgrade your dependency to 1.2.0 or later.
What is the CVSS score of CVE-2021-39235?
CVE-2021-39235 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2021-39235?
CVE-2021-39235 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-2021-39235?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.ozone'. 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-c6j7-4fr9-c76p",
  "modified" : "2023-11-14T21:48:57Z",
  "published" : "2021-11-23T18:17:41Z",
  "aliases" : [ "CVE-2021-39235" ],
  "summary" : "Incorrect permissions in Apache Ozone",
  "details" : "In Apache Ozone before 1.2.0, Ozone Datanode doesn't check the access mode parameter of the block token. Authenticated users with valid READ block token can do any write operation on the same block.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.ozone:ozone-main"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-39235"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/ozone"
  }, {
    "type" : "WEB",
    "url" : "https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C93f88246-4320-7423-0dac-ec7a07f47455%40apache.org%3E"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2021/11/19/6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-732" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-11-22T18:37:43Z",
    "nvd_published_at" : "2021-11-19T10:15:00Z"
  }
}