Improper Control of Generation of Code Affecting com.cronutils:cron-utils package, versions [0,9.1.3)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
16.77% (97th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Improper Control of Generation of Code vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-JAVA-COMCRONUTILS-1045837
  • published26 Nov 2020
  • disclosed24 Nov 2020
  • creditUnknown

Introduced: 24 Nov 2020

CVE-2020-26238  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade com.cronutils:cron-utils to version 9.1.3 or higher.

Overview

com.cronutils:cron-utils is a Java library to parse, migrate and validate crons as well as describe them in human readable language.

Affected versions of this package are vulnerable to Improper Control of Generation of Code. A template injection vulnerability is present in previous versions of cron-utils. This enables attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. Only projects using the @Cron annotation to validate untrusted Cron expressions are affected.

CVSS Scores

version 3.1