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Remote Code Execution (RCE) Affecting mysql2 package, versions <3.9.4

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Social Trends Trending on Twitter
    Exploit Maturity Proof of concept
    EPSS 0.04% (10th percentile)

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  • Snyk ID SNYK-JS-MYSQL2-6591085
  • published 10 Apr 2024
  • disclosed 7 Apr 2024
  • credit Vsevolod Kokorin
Report a new vulnerability Found a mistake?

Introduced: 7 Apr 2024

New CVE-2024-21508 Open this link in a new tab
CWE-94 Open this link in a new tab
First added by Snyk

How to fix?

Upgrade mysql2 to version 3.9.4 or higher.

Overview

mysql2 is a mostly API compatible with mysqljs and supports majority of features.

Affected versions of this package are vulnerable to Remote Code Execution (RCE) via the readCodeFor function due to improper validation of the supportBigNumbers and bigNumberStrings values.

PoC 

 {sql:`SELECT INDEX_LENGTH FROM information_schema.tables LIMIT 1`, supportBigNumbers:"console.log(1337)"}