CVE-2017-20188 : Security Advisory and Response

CVE-2017-20188 pertains to a cross-site scripting vulnerability found in Zimbra zm-ajax up to version 8.8.1. This CVE entry provides insights into the impact, technical details, and mitigation steps related to the vulnerability.

Understanding CVE-2017-20188

This section delves into the specifics of the CVE-2017-20188 vulnerability.

What is CVE-2017-20188?

CVE-2017-20188 involves a cross-site scripting vulnerability affecting the XFormItem.prototype.setError function in the file XFormItem.js within Zimbra zm-ajax up to version 8.8.1.

The Impact of CVE-2017-20188

The vulnerability allows remote attackers to execute cross-site scripting attacks with a high level of complexity. Exploiting this vulnerability is considered challenging.

Technical Details of CVE-2017-20188

This section outlines the technical aspects of CVE-2017-20188.

Vulnerability Description

The manipulation of the 'message' argument in the XFormItem.prototype.setError function can lead to cross-site scripting attacks.

Affected Systems and Versions

Vendor: Zimbra
Product: zm-ajax
Affected Versions: 8.8.0, 8.8.1

Exploitation Mechanism

Attack Vector: Network
Attack Complexity: High
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality, Integrity, Availability: None, Low, None

Mitigation and Prevention

Learn how to mitigate and prevent CVE-2017-20188.

Immediate Steps to Take

Upgrade to version 8.8.2, which contains a patch (8d039d6efe80780adc40c6f670c06d21de272105)

Long-Term Security Practices

Regularly update software to the latest versions
Implement secure coding practices

Patching and Updates

Ensure timely application of patches and updates to address known vulnerabilities.