CVE-2021-20132: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-8v3c-9hr5-hqm7
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CWE-798
Published
Advisory Summary

CVE-2021-20132 is a HIGH security vulnerability vulnerability (CWE-798: Use of Hard-coded Credentials) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product contains hard-coded credentials, such as a password or cryptographic key.. Remediation is available in the latest vendor maintenance releases.

CVE-2021-20132 at a Glance

CVE Identifier CVE-2021-20132
GHSA Identifier GHSA-8v3c-9hr5-hqm7
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-798: Use of Hard-coded Credentials
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2021-20132

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

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

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2021-20132, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software 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 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-798: Use of Hard-coded Credentials, where the product contains hard-coded credentials, such as a password or cryptographic key. In Software, 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

Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 use default hard-coded credentials, which can allow a remote attacker to gain administrative access to the zebra or ripd those services. Both are running with root privileges on the router (i.e., as the "admin" user, UID 0).

References

NVD — CVE-2021-20132 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20132
Software Security Information SECURITY
https://www.tenable.com/security/research/tra-2021-44

Frequently Asked Questions

What is CVE-2021-20132?
CVE-2021-20132 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-798: Use of Hard-coded Credentials.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2021-20132?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2021-20132?
CVE-2021-20132 is classified under CWE-798: Use of Hard-coded Credentials (The product contains hard-coded credentials, such as a password or cryptographic key.).
How can I check Maven dependencies for CVE-2021-20132?
Run the dependency tree command: 'mvn dependency:tree'. 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-8v3c-9hr5-hqm7",
  "modified" : "2022-01-13T00:01:53Z",
  "published" : "2021-12-31T00:00:37Z",
  "aliases" : [ "CVE-2021-20132" ],
  "details" : "Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 use default hard-coded credentials, which can allow a remote attacker to gain administrative access to the zebra or ripd those services. Both are running with root privileges on the router (i.e., as the \"admin\" user, UID 0).",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-20132"
  }, {
    "type" : "WEB",
    "url" : "https://www.tenable.com/security/research/tra-2021-44"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-798" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2021-12-30T22:15:00Z"
  }
}