CVE-2021-41269: Unauthenticated remote code injection in cron-utils

Published Nov 15, 2021
·
Updated

A flaw was found in cron-utils. This flaw allows an attacker to perform unauthenticated Remote Code Execution (RCE) via Java Expression Language (EL) injection.

Affected Software

8 affected componentsFixes available
redhat/cron-utils<9.1.6
9.1.6
IBM Data Virtualization on Cloud Pak for Data<=3.0
IBM Watson Query on Cloud Pak for Data<=2.2
IBM Watson Query on Cloud Pak for Data<=2.1
IBM Watson Query on Cloud Pak for Data<=2.0
IBM Data Virtualization on Cloud Pak for Data<=1.8
IBM Data Virtualization on Cloud Pak for Data<=1.7
Cron-utils Project Cron-utils<9.1.6

Remediation

Patch Available

https://github.com/jmrozanec/cron-utils/commit/cfd2880f80e62ea74b92fa83474c2aabdb9899da

Patch Available

https://github.com/jmrozanec/cron-utils/commit/d6707503ec2f20947f79e38f861dba93b39df9da

Event History

Nov 15, 2021
CVE Published
via MITRE·08:30 PM
Data Sourced
via MITRE·08:30 PM
DescriptionSeverityWeakness
Nov 17, 2021
Data Sourced
12:00 AM
RemedyDescriptionSeverityWeaknessAffected Software
Nov 18, 2021
Data Sourced
via Red Hat·02:35 PM
DescriptionSeverityAffected Software
Aug 15, 2025
Data Sourced
via IBM·03:29 PM
DescriptionAffected Software
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Frequently Asked Questions

1

What is CVE-2021-41269?

CVE-2021-41269 is a vulnerability in the cron-utils Java library that allows an attacker to perform unauthenticated Remote Code Execution (RCE) by injecting arbitrary Java EL expressions.

2

What is cron-utils?

cron-utils is a Java library used for defining, parsing, validating, and migrating crons, as well as providing human-readable descriptions for them.

3

How severe is CVE-2021-41269?

CVE-2021-41269 has a severity rating of critical with a value of 9 on a scale of 1 to 10.

4

How can an attacker exploit CVE-2021-41269?

An attacker can exploit CVE-2021-41269 by injecting arbitrary Java EL expressions, which can lead to unauthenticated Remote Code Execution.

5

How can I fix CVE-2021-41269?

To fix CVE-2021-41269, update the cron-utils library to version 9.1.6, which includes the necessary remediation.

Company

Resources

Contact

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CVE-2021-41269 - Unauthenticated remote code injection in cron-utils - SecAlerts