CVE-2024-21507: Mysql2 Mysql2 Cache Poisoning Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-mqr2-w7wj-jjgr
Share
CVSS 6.5
CWE-20
Published
Advisory Summary

CVE-2024-21507 is a MODERATE (CVSS 6.5) mysql2 cache poisoning vulnerability vulnerability (CWE-20: Improper Input Validation) affecting Mysql2 libraries in the npm ecosystem. The issue involves mysql2 cache poisoning vulnerability. Remediation is available by upgrading affected packages to version 3.9.3.

CVE-2024-21507 at a Glance

CVE Identifier CVE-2024-21507
GHSA Identifier GHSA-mqr2-w7wj-jjgr
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-20: Improper Input Validation
Affected Product Mysql2
Package Ecosystem npm
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:N/UI:N/S:U/C:L/I:N/A:L).

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

How to Fix CVE-2024-21507

To remediate this vulnerability, upgrade all affected Mysql2 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

mysql2 fixed: 3.9.3 
npm install mysql2@3.9.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls mysql2

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2024-21507, inspect your project dependencies using npm:

npm ls mysql2

Analyze the terminal output to locate any version of Mysql2 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.9.3), your application is affected.

Note: The npm ls mysql2 command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Mysql2, 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

Versions of the package mysql2 before 3.9.3 are vulnerable to Improper Input Validation through the `keyFromFields` function, resulting in cache poisoning. An attacker can inject a colon `:` character within a value of the attacker-crafted key.

CVE-2024-21507 Affected Mysql2 Versions

1 component(s)
Fixed Versions:
3.9.3
Product / Package Ecosystem Affected Versions Fixed Version
mysql2
npm/mysql2
npm
< 3.9.3
3.9.3

References

NVD — CVE-2024-21507 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-21507
Mysql2 Source Repository REPOSITORY
https://github.com/sidorares/node-mysql2/pull/2424
Security Fix Commit FIX COMMIT
https://github.com/sidorares/node-mysql2/commit/0d54b0ca6498c823098426038162ef10df02c818
blog.slonser.info/posts/mysql2-attack... WEB
https://blog.slonser.info/posts/mysql2-attacker-configuration
Mysql2 Source Repository REPOSITORY
https://github.com/sidorares/node-mysql2
Mysql2 Security Information SECURITY
https://security.snyk.io/vuln/SNYK-JS-MYSQL2-6591300

Frequently Asked Questions

What is CVE-2024-21507?
CVE-2024-21507 is a security vulnerability in Mysql2 involving mysql2 cache poisoning vulnerability under CWE-20: Improper Input Validation.
Which Mysql2 versions are affected?
Affected versions include releases prior to 3.9.3 across affected packages: mysql2.
What version fixes CVE-2024-21507?
Upgrading to 3.9.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is mysql2 affected?
Yes, mysql2 is affected in releases prior to 3.9.3. Upgrade your dependency to 3.9.3 or later.
What is the CVSS score of CVE-2024-21507?
CVE-2024-21507 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
What CWE is associated with CVE-2024-21507?
CVE-2024-21507 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check npm dependencies for CVE-2024-21507?
Run the dependency tree command: 'npm ls mysql2'. 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-mqr2-w7wj-jjgr",
  "modified" : "2024-08-02T15:40:05Z",
  "published" : "2024-04-10T15:30:39Z",
  "aliases" : [ "CVE-2024-21507" ],
  "summary" : "mysql2 cache poisoning vulnerability",
  "details" : "Versions of the package mysql2 before 3.9.3 are vulnerable to Improper Input Validation through the `keyFromFields` function, resulting in cache poisoning. An attacker can inject a colon `:` character within a value of the attacker-crafted key.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "mysql2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.9.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-21507"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sidorares/node-mysql2/pull/2424"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sidorares/node-mysql2/commit/0d54b0ca6498c823098426038162ef10df02c818"
  }, {
    "type" : "WEB",
    "url" : "https://blog.slonser.info/posts/mysql2-attacker-configuration"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/sidorares/node-mysql2"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-JS-MYSQL2-6591300"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-12T13:49:53Z",
    "nvd_published_at" : "2024-04-10T05:15:48Z"
  }
}