CVE-2019-9670 : What You Need to Know

An XML External Entity injection (XXE) vulnerability in the mailboxd component of Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10 allows exploitation through Autodiscover/Autodiscover.xml.

Understanding CVE-2019-9670

This CVE involves a critical security issue in the Synacor Zimbra Collaboration Suite that could lead to unauthorized access and data exposure.

What is CVE-2019-9670?

The vulnerability in the mailboxd component of Zimbra Collaboration Suite allows attackers to exploit XXE through Autodiscover/Autodiscover.xml, potentially leading to sensitive data exposure.

The Impact of CVE-2019-9670

This vulnerability could result in unauthorized access to sensitive information, data leakage, and potential manipulation of data within the affected systems.

Technical Details of CVE-2019-9670

The technical aspects of the vulnerability provide insight into its nature and potential risks.

Vulnerability Description

The mailboxd component in Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10 is susceptible to an XXE vulnerability, as demonstrated through Autodiscover/Autodiscover.xml.

Affected Systems and Versions

Product: Synacor Zimbra Collaboration Suite
Versions affected: 8.7.x before 8.7.11p10

Exploitation Mechanism

The vulnerability can be exploited through Autodiscover/Autodiscover.xml, allowing attackers to inject malicious XML code and potentially gain unauthorized access to sensitive data.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2019-9670.

Immediate Steps to Take

Update Zimbra Collaboration Suite to version 8.7.11p10 or later to patch the vulnerability.
Monitor network traffic for any suspicious activity that could indicate exploitation attempts.

Long-Term Security Practices

Regularly update and patch all software and applications to prevent known vulnerabilities.
Implement strict access controls and authentication mechanisms to limit unauthorized access to sensitive data.

Patching and Updates

Apply security patches and updates provided by Zimbra promptly to ensure the system is protected against known vulnerabilities.