CVE-2018-0528 : Security Advisory and Response

Cybozu Office versions 10.0.0 to 10.7.0 allow authenticated attackers to view unauthorized schedules, bypassing the authentication process.

Understanding CVE-2018-0528

Authenticated attackers in Cybozu Office versions 10.0.0 to 10.7.0 can access schedules they are not authorized to view, circumventing authentication.

What is CVE-2018-0528?

This CVE refers to an authentication bypass vulnerability in Cybozu Office versions 10.0.0 to 10.7.0, enabling authenticated attackers to view unauthorized schedules through undisclosed methods.

The Impact of CVE-2018-0528

The vulnerability allows attackers to bypass authentication and access schedules they should not be able to view, potentially leading to unauthorized information disclosure.

Technical Details of CVE-2018-0528

Cybozu Office vulnerability details and affected systems.

Vulnerability Description

Type: Authentication bypass
Attack Vector: Unspecified
Affected Versions: 10.0.0 to 10.7.0

Affected Systems and Versions

Cybozu Office versions 10.0.0 to 10.7.0 are impacted by this vulnerability.

Exploitation Mechanism

Attackers with authenticated access exploit undisclosed methods to view unauthorized schedules, evading the authentication process.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2018-0528.

Immediate Steps to Take

Update Cybozu Office to a patched version that addresses the authentication bypass vulnerability.
Monitor and restrict access to sensitive schedules.

Long-Term Security Practices

Implement multi-factor authentication to enhance access control.
Regularly review and update access permissions to prevent unauthorized viewing of schedules.

Patching and Updates

Apply security patches provided by Cybozu, Inc. promptly to fix the authentication bypass vulnerability in affected versions.