CVE-2020-35213: Atomix Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-2fqw-684c-pvp7
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CVSS 8.1
CWE-74
Published
Advisory Summary

CVE-2020-35213 is a HIGH (CVSS 8.1) denial of service vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')) affecting Atomix libraries in the Maven ecosystem. The issue involves an issue in atomix v3.1.5 allows attackers to cause a denial of service (dos) via false link event messages sent to a master onos node.. Remediation is available in the latest vendor maintenance releases.

CVE-2020-35213 at a Glance

CVE Identifier CVE-2020-35213
GHSA Identifier GHSA-2fqw-684c-pvp7
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Product Atomix
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.1

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

How to Fix CVE-2020-35213

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

io.atomix:atomix fixed: Latest secure release 
<dependency>
    <groupId>io.atomix</groupId>
    <artifactId>atomix</artifactId>
    <version>Latest secure release</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=io.atomix

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2020-35213, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=io.atomix

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

Note: The mvn dependency:tree -Dincludes=io.atomix 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-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), where the product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. In Atomix, 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

An issue in Atomix v3.1.5 allows attackers to cause a denial of service (DoS) via false link event messages sent to a master ONOS node.

CVE-2020-35213 Affected Atomix Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
io.atomix:atomix
maven/io.atomix/atomix
Maven
≤ 3.1.5

References

NVD — CVE-2020-35213 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-35213
docs.google.com/presentation/d/1i8t... WEB
https://docs.google.com/presentation/d/1i8tVVGE8z9Rtl9UTwktOJpkZwT4kBVLgIk307qMiw_8/edit?usp=sharing
Atomix Source Repository REPOSITORY
https://github.com/atomix/atomix

Frequently Asked Questions

What is CVE-2020-35213?
CVE-2020-35213 is a security vulnerability in Atomix involving An issue in Atomix v3.1.5 allows attackers to cause a denial of service (DoS) via false link event messages sent to a master ONOS node. under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection').
Which Atomix versions are affected?
Affected versions include releases prior to current release patches across affected packages: io.atomix:atomix.
What version fixes CVE-2020-35213?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is atomix affected?
Yes, io.atomix:atomix is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2020-35213?
CVE-2020-35213 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
What CWE is associated with CVE-2020-35213?
CVE-2020-35213 is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.).
How can I check Maven dependencies for CVE-2020-35213?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=io.atomix'. 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-2fqw-684c-pvp7",
  "modified" : "2022-01-04T18:59:02Z",
  "published" : "2021-12-17T20:40:50Z",
  "aliases" : [ "CVE-2020-35213" ],
  "summary" : "An issue in Atomix v3.1.5 allows attackers to cause a denial of service (DoS) via false link event messages sent to a master ONOS node.",
  "details" : "An issue in Atomix v3.1.5 allows attackers to cause a denial of service (DoS) via false link event messages sent to a master ONOS node.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.atomix:atomix"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "3.1.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-35213"
  }, {
    "type" : "WEB",
    "url" : "https://docs.google.com/presentation/d/1i8tVVGE8z9Rtl9UTwktOJpkZwT4kBVLgIk307qMiw_8/edit?usp=sharing"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/atomix/atomix"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-74" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-12-17T18:42:16Z",
    "nvd_published_at" : "2021-12-16T20:15:00Z"
  }
}