CVE-2021-41112 : Vulnerability Insights and Analysis

Rundeck prior to version 3.4.5 allows authenticated users to modify or delete Calendars without proper authorization, impacting the execution of Scheduled Jobs.

Understanding CVE-2021-41112

Rundeck, an open-source automation service, is vulnerable to unauthorized modifications in versions before 3.4.5, potentially affecting job scheduling.

What is CVE-2021-41112?

In Rundeck versions earlier than 3.4.5, authenticated users can manipulate Calendars without correct permissions, impacting job execution based on calendar days.

The Impact of CVE-2021-41112

Severity varies based on user trust level and the significance of scheduled jobs influenced by calendar changes.

Technical Details of CVE-2021-41112

Rundeck's vulnerability details and affected system information.

Vulnerability Description

The vulnerability involves unauthorized alteration of System or Project Calendars, leading to potential disruptions in job scheduling.

Affected Systems and Versions

Product: Rundeck
Vendor: Rundeck
Versions Affected: < 3.4.5

Exploitation Mechanism

Authenticated users can craft requests to modify Calendars, affecting the execution or omission of Scheduled Jobs.

Mitigation and Prevention

Steps to address and prevent the CVE-2021-41112 vulnerability.

Immediate Steps to Take

Upgrade Rundeck to version 3.4.5 that includes a patch for this issue.
Implement strong access controls to restrict unauthorized modifications.

Long-Term Security Practices

Regularly review and adjust user privileges to minimize the risk of unauthorized changes.
Monitor job execution patterns to detect anomalies that could indicate unauthorized calendar modifications.

Patching and Updates

Ensure timely application of patches and updates to Rundeck to address known vulnerabilities.