CVE-2018-10951 Explained : Impact and Mitigation

Zimbra Collaboration Suite versions 8.8 before 8.8.8, 8.7 before 8.7.11.Patch3, and 8.6 before 8.6.0.Patch10 are vulnerable to unauthorized access to zimbraSSLPrivateKey through specific API calls in the Admin SOAP API.

Understanding CVE-2018-10951

In the Zimbra Collaboration Suite, a vulnerability in the mailboxd component allows unauthorized access to sensitive information.

What is CVE-2018-10951?

The vulnerability in Zimbra Collaboration Suite versions allows unauthorized access to zimbraSSLPrivateKey through specific API calls in the Admin SOAP API.

The Impact of CVE-2018-10951

This vulnerability could lead to unauthorized access to sensitive data, compromising the security and confidentiality of the Zimbra Collaboration Suite.

Technical Details of CVE-2018-10951

The following technical details provide insight into the vulnerability.

Vulnerability Description

The mailboxd component in Zimbra Collaboration Suite versions 8.8 before 8.8.8, 8.7 before 8.7.11.Patch3, and 8.6 before 8.6.0.Patch10 allows unauthorized access to zimbraSSLPrivateKey via specific API calls.

Affected Systems and Versions

Zimbra Collaboration Suite 8.8 before 8.8.8
Zimbra Collaboration Suite 8.7 before 8.7.11.Patch3
Zimbra Collaboration Suite 8.6 before 8.6.0.Patch10

Exploitation Mechanism

The vulnerability can be exploited through specific API calls in the Admin SOAP API, namely GetServer, GetAllServers, or GetAllActiveServers.

Mitigation and Prevention

Protecting systems from CVE-2018-10951 is crucial to maintaining security.

Immediate Steps to Take

Apply the necessary patches provided by Zimbra to address the vulnerability.
Monitor and restrict access to sensitive API calls within the Admin SOAP API.

Long-Term Security Practices

Regularly update and patch the Zimbra Collaboration Suite to prevent vulnerabilities.
Implement strong access controls and authentication mechanisms to restrict unauthorized access.
Conduct regular security audits and assessments to identify and mitigate potential risks.

Patching and Updates

Ensure that all systems running Zimbra Collaboration Suite are updated with the latest patches and security fixes.