CVE-2021-25939: Software Security Vulnerability Vulnerability

LOW
Advisory Identifier: GHSA-vw3j-xfjf-6rj3
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CWE-918
Published
Advisory Summary

CVE-2021-25939 is a LOW security vulnerability vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Software libraries in the Maven ecosystem. The weakness occurs when the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination.. Remediation is available in the latest vendor maintenance releases.

CVE-2021-25939 at a Glance

CVE Identifier CVE-2021-25939
GHSA Identifier GHSA-vw3j-xfjf-6rj3
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2021-25939

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-2021-25939, 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-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. 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

In ArangoDB, versions v3.7.0 through v3.9.0-alpha.1 have a feature which allows downloading a Foxx service from a publicly available URL. This feature does not enforce proper filtering of requests performed internally, which can be abused by a highly-privileged attacker to perform blind SSRF and send internal requests to localhost.

References

NVD — CVE-2021-25939 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-25939
Security Fix Commit FIX COMMIT
https://github.com/arangodb/arangodb/commit/d7b35a6884c6b2802d34d79fb2a79fb2c9ec2175
Security Fix Commit FIX COMMIT
https://github.com/arangodb/arangodb/commit/d9b7f019d2435f107b19a59190bf9cc27d5f34dd
www.whitesourcesoftware.com/vulnerability-datab... WEB
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25939

Frequently Asked Questions

What is CVE-2021-25939?
CVE-2021-25939 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-918: Server-Side Request Forgery (SSRF).
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2021-25939?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2021-25939?
CVE-2021-25939 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check Maven dependencies for CVE-2021-25939?
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-vw3j-xfjf-6rj3",
  "modified" : "2022-02-10T00:00:31Z",
  "published" : "2022-02-10T00:00:31Z",
  "aliases" : [ "CVE-2021-25939" ],
  "details" : "In ArangoDB, versions v3.7.0 through v3.9.0-alpha.1 have a feature which allows downloading a Foxx service from a publicly available URL. This feature does not enforce proper filtering of requests performed internally, which can be abused by a highly-privileged attacker to perform blind SSRF and send internal requests to localhost.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-25939"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/arangodb/arangodb/commit/d7b35a6884c6b2802d34d79fb2a79fb2c9ec2175"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/arangodb/arangodb/commit/d9b7f019d2435f107b19a59190bf9cc27d5f34dd"
  }, {
    "type" : "WEB",
    "url" : "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25939"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "LOW",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2022-02-09T13:15:00Z"
  }
}