CVE-2021-20760 : What You Need to Know

This CVE-2021-20760 article provides an in-depth analysis of an improper input validation vulnerability found in the User Profile of Cybozu Garoon versions 4.0.0 to 5.0.2, allowing remote authenticated attackers to manipulate User Profile data without proper privileges.

Understanding CVE-2021-20760

This section delves into the key aspects of the CVE-2021-20760 vulnerability.

What is CVE-2021-20760?

The CVE-2021-20760 relates to an improper input validation flaw within the User Profile feature of Cybozu Garoon versions 4.0.0 to 5.0.2. Exploitation of this vulnerability enables a remote authenticated attacker to modify User Profile data without the necessary permissions.

The Impact of CVE-2021-20760

The vulnerability poses a significant threat as it allows attackers to tamper with User Profile information, potentially leading to unauthorized access or modification of sensitive data stored within the Cybozu Garoon application.

Technical Details of CVE-2021-20760

This section outlines the technical specifics of CVE-2021-20760.

Vulnerability Description

The vulnerability in the User Profile of Cybozu Garoon versions 4.0.0 to 5.0.2 arises due to improper input validation, enabling remote authenticated attackers to manipulate user data without the required privileges.

Affected Systems and Versions

Cybozu Garoon versions 4.0.0 to 5.0.2 are affected by this vulnerability, potentially impacting users of these specific versions of the application.

Exploitation Mechanism

Exploiting this vulnerability involves leveraging the lack of proper input validation in the User Profile feature to alter user data, which can be abused by remote authenticated attackers.

Mitigation and Prevention

This section focuses on strategies to mitigate and prevent the exploitation of CVE-2021-20760.

Immediate Steps to Take

Users are advised to update Cybozu Garoon to a patched version that addresses the input validation vulnerability. Additionally, users should review and restrict access privileges to User Profile settings to authorized personnel only.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security assessments, and promoting user awareness can enhance the overall security posture of applications like Cybozu Garoon.

Patching and Updates

Regularly applying security patches, updates, and fixes provided by Cybozu, Inc., ensures that known vulnerabilities, including those like CVE-2021-20760, are effectively mitigated and remediated.