Critical vulnerability found in cron-utils
Critical severity
GitHub Reviewed
Published
Nov 15, 2021
in
jmrozanec/cron-utils
•
Updated Feb 1, 2023
Description
Published by the National Vulnerability Database
Nov 15, 2021
Reviewed
Nov 15, 2021
Published to the GitHub Advisory Database
Nov 15, 2021
Last updated
Feb 1, 2023
Credits
-
NielsDoucet Analyst
-
pwntester Analyst
Impact
A Template Injection was identified in cron-utils enabling attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. Versions up to 9.1.2 are susceptible to this vulnerability. Please note, that only projects using the @Cron annotation to validate untrusted Cron expressions are affected.
Patches
The issue was patched and a new version was released. Please upgrade to version 9.1.6.
Workarounds
There are no known workarounds up to this moment.
References
A description of the issue is provided in issue 461
For more information
If you have any questions or comments about this advisory:
Open an issue in the cron-utils Github repository
References