CVE-2021-20624 : Exploit Details and Defense Strategies

This CVE-2021-20624 relates to an improper access control vulnerability found in the Scheduler component of Cybozu Office versions 10.0.0 to 10.8.4. An authenticated attacker could exploit this flaw to bypass access restrictions and modify Scheduler data through unspecified methods.

Understanding CVE-2021-20624

This section provides insights into the nature and implications of the CVE-2021-20624 vulnerability.

What is CVE-2021-20624?

The CVE-2021-20624 vulnerability involves improper access control in Cybozu Office's Scheduler module, allowing authenticated attackers to circumvent access limitations and manipulate Scheduler data using unidentified means.

The Impact of CVE-2021-20624

The impact of this vulnerability is significant as it enables authenticated attackers to tamper with Scheduler data, potentially leading to unauthorized modifications and disruptions in the application's functionality.

Technical Details of CVE-2021-20624

Delve deeper into the technical aspects of CVE-2021-20624 to understand its specifics.

Vulnerability Description

The vulnerability stems from inadequate access controls within Cybozu Office's Scheduler feature, permitting authenticated malicious users to alter Scheduler data without proper authorization.

Affected Systems and Versions

Cybozu Office versions 10.0.0 to 10.8.4 are confirmed to be impacted by this vulnerability, leaving them susceptible to exploitation by attackers with authenticated access.

Exploitation Mechanism

Attackers with authenticated access can exploit this vulnerability by leveraging the lack of proper access controls in the Scheduler component, enabling them to modify data beyond their authorized permissions.

Mitigation and Prevention

Discover how to address and prevent the CVE-2021-20624 vulnerability effectively.

Immediate Steps to Take

Users are advised to implement immediate measures to mitigate the risk posed by this vulnerability, including reviewing access controls and monitoring Scheduler activities for any unauthorized changes.

Long-Term Security Practices

Incorporating robust access control mechanisms and conducting regular security assessments can bolster long-term security posture and reduce the likelihood of such vulnerabilities being exploited.

Patching and Updates

Staying informed about security patches and updates released by Cybozu, Inc. for Cybozu Office is crucial to ensure that known vulnerabilities like CVE-2021-20624 are promptly addressed.