CVE-2021-42718: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-rpm9-4hwq-7f64
CVSS 4.9
CWE-922
Published
Advisory Summary

CVE-2021-42718 is a MODERATE (CVSS 4.9) security vulnerability vulnerability (CWE-922: Insecure Storage of Sensitive Information) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product stores sensitive information without properly limiting read or write access by unauthorized actors.. Remediation is available in the latest vendor maintenance releases.

CVE-2021-42718 at a Glance

CVE Identifier CVE-2021-42718
GHSA Identifier GHSA-rpm9-4hwq-7f64
Severity MODERATE
CVSS v3.1 Base Score 4.9
CWE Classification CWE-922: Insecure Storage of Sensitive Information
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.9

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

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

How to Fix CVE-2021-42718

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-2021-42718, 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-922: Insecure Storage of Sensitive Information, where the product stores sensitive information without properly limiting read or write access by unauthorized actors. 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

Information Disclosure in API in Replicated Replicated Classic versions prior to 2.53.1 on all platforms allows authenticated users with Admin Console access to retrieve sensitive data, including application secrets, via accessing container definitions with environment variables through the Admin Console API on port 8800. This CVE was originally reserved in 2021 and later publicly disclosed by Replicated on their website on 21 October 2021. However, it mistakenly remained in the Reserved But Public (RBP) status with the CVE Numbering Authority (CNA). Please note that this product reached its end of life on 31 December 2024. Publishing this CVE with the CNA was required to comply with CNA rules, despite the fact that the issue was disclosed and fixed four years ago, and the affected product is no longer supported as of 2024. Summary of VulnerabilityThis advisory discloses a low severity security vulnerability in the versions of Replicated Classic listed above (“Affected Replicated Classic Versions”) DescriptionReplicated Classic versions prior to 2.53.1 have an authenticated API from the Replicated Admin Console that may expose sensitive data including application secrets, depending on how the application manifests are written. A user with valid credentials and access to the Admin Console port (8800) on the Replicated Classic server can retrieve container definitions including environment variables which may contain passwords and other secrets depending on how the application is configured. This data is shared over authenticated sessions to the Admin Console only, and was never displayed or used in the application processing. To remediate this issue, we removed the sensitive data from the API, sending only the data to the Admin Console that was needed. TimelineThis issue was discovered during a security review on 16 September 2021. Patched versions were released on 23 September 2021. This advisory was published on 21 October 2021. The CVE Numbering Authority (CNA) notified Replicated on 23 January 2025 that the CVE was still in Reserved But Public (RBP) status. Upon discovering the oversight in updating the status to published with the CNA, Replicated submitted the updated report on the same day, 23 January 2025.

References

Frequently Asked Questions

What is CVE-2021-42718?
CVE-2021-42718 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-922: Insecure Storage of Sensitive Information.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2021-42718?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2021-42718?
CVE-2021-42718 has a CVSS v3.1 base score of 4.9 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2021-42718?
CVE-2021-42718 is classified under CWE-922: Insecure Storage of Sensitive Information (The product stores sensitive information without properly limiting read or write access by unauthorized actors.).
How can I check Maven dependencies for CVE-2021-42718?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-rpm9-4hwq-7f64",
  "modified" : "2025-01-24T15:30:47Z",
  "published" : "2025-01-24T00:31:47Z",
  "aliases" : [ "CVE-2021-42718" ],
  "details" : "Information Disclosure in API in Replicated Replicated Classic versions prior to 2.53.1 on all platforms allows authenticated users with Admin Console access to retrieve sensitive data, including application secrets, via accessing container definitions with environment variables through the Admin Console API on port 8800.\n\nThis CVE was originally reserved in 2021 and later publicly disclosed by Replicated on their website on 21 October 2021. However, it mistakenly remained in the Reserved But Public (RBP) status with the CVE Numbering Authority (CNA). Please note that this product reached its end of life on 31 December 2024. Publishing this CVE with the CNA was required to comply with CNA rules, despite the fact that the issue was disclosed and fixed four years ago, and the affected product is no longer supported as of 2024.\n\nSummary of VulnerabilityThis advisory discloses a low severity security vulnerability in the versions of Replicated Classic listed above (“Affected Replicated Classic Versions”)\n\nDescriptionReplicated Classic versions prior to 2.53.1 have an authenticated API from the Replicated Admin Console that may expose sensitive data including application secrets, depending on how the application manifests are written. A user with valid credentials and access to the Admin Console port (8800) on the Replicated Classic server can retrieve container definitions including environment variables which may contain passwords and other secrets depending on how the application is configured.\n\nThis data is shared over authenticated sessions to the Admin Console only, and was never displayed or used in the application processing. To remediate this issue, we removed the sensitive data from the API, sending only the data to the Admin Console that was needed.\n\nTimelineThis issue was discovered during a security review on 16 September 2021.\nPatched versions were released on 23 September 2021.\nThis advisory was published on 21 October 2021.\n\n\nThe CVE Numbering Authority (CNA) notified Replicated on 23 January 2025 that the CVE was still in Reserved But Public (RBP) status. Upon discovering the oversight in updating the status to published with the CNA, Replicated submitted the updated report on the same day, 23 January 2025.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-42718"
  }, {
    "type" : "WEB",
    "url" : "https://www.replicated.com/cve-2021-42718"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-922" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2025-01-23T23:15:07Z"
  }
}