CVE-2017-2091 Explained : Impact and Mitigation

Cybozu Garoon 3.0.0 to 4.2.3 allows authenticated remote attackers to bypass access restrictions in the Phone Messages feature, enabling them to modify phone message statuses.

Understanding CVE-2017-2091

This CVE involves a vulnerability in Cybozu Garoon that allows attackers to manipulate phone message statuses.

What is CVE-2017-2091?

The vulnerability in Cybozu Garoon version 3.0.0 to 4.2.3 permits authenticated remote attackers to bypass access restrictions in the Phone Messages feature, granting them the ability to change phone message statuses through unspecified methods.

The Impact of CVE-2017-2091

The vulnerability allows attackers authenticated in Cybozu Garoon to alter phone message statuses, potentially leading to unauthorized modifications and misuse of the feature.

Technical Details of CVE-2017-2091

This section provides more technical insights into the CVE.

Vulnerability Description

The issue arises from a failure to properly restrict access within the Phone Messages function of Cybozu Garoon, enabling attackers to manipulate phone message statuses.

Affected Systems and Versions

Product: Cybozu Garoon
Vendor: Cybozu, Inc.
Versions Affected: 3.0.0 to 4.2.3

Exploitation Mechanism

Attackers with authenticated access can exploit this vulnerability to bypass access restrictions and modify phone message statuses using unspecified methods.

Mitigation and Prevention

Protecting systems from CVE-2017-2091 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly to address the vulnerability.
Monitor and restrict access to the Phone Messages feature to authorized users only.
Regularly review and audit phone message statuses for any unauthorized changes.

Long-Term Security Practices

Conduct regular security training for users to raise awareness of potential threats and vulnerabilities.
Implement a robust access control mechanism to prevent unauthorized access to critical features.
Stay informed about security advisories and updates from Cybozu, Inc. to address vulnerabilities promptly.
Consider implementing additional security measures such as multi-factor authentication to enhance system security.
Regularly conduct security assessments and penetration testing to identify and mitigate potential security risks.

Patching and Updates

Cybozu, Inc. may release patches or updates to address the vulnerability. Ensure timely application of these patches to secure the system against exploitation.