CVE-2018-10803 : Security Advisory and Response

Zoho ManageEngine NetFlow Analyzer v12.3 before build 123125 is vulnerable to cross-site scripting (XSS) through the add credentials feature, allowing attackers to insert malicious scripts via a manipulated description value.

Understanding CVE-2018-10803

This CVE involves a security vulnerability in Zoho ManageEngine NetFlow Analyzer v12.3 before build 123125 that enables cross-site scripting (XSS) attacks.

What is CVE-2018-10803?

Cross-site scripting (XSS) in Zoho ManageEngine NetFlow Analyzer v12.3 before 12.3.125 allows remote attackers to inject arbitrary web script or HTML via a crafted description value, exploitable through CSRF.

The Impact of CVE-2018-10803

The vulnerability permits attackers to execute arbitrary scripts within the context of the user's browser, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2018-10803

This section provides detailed technical insights into the CVE.

Vulnerability Description

The add credentials feature in Zoho ManageEngine NetFlow Analyzer v12.3 before build 123125 is susceptible to cross-site scripting (XSS) attacks, enabling the injection of malicious scripts via manipulated description values.

Affected Systems and Versions

Product: Zoho ManageEngine NetFlow Analyzer
Version: v12.3 before build 123125

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the description value, allowing them to insert arbitrary web scripts or HTML, which can be triggered through CSRF.

Mitigation and Prevention

Protecting systems from CVE-2018-10803 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Zoho ManageEngine NetFlow Analyzer to build 123125 or later to mitigate the XSS vulnerability.
Implement input validation mechanisms to sanitize user inputs and prevent script injections.

Long-Term Security Practices

Regularly monitor and audit web applications for vulnerabilities like XSS.
Educate users on safe browsing practices to minimize the risk of XSS attacks.

Patching and Updates

Stay informed about security updates and patches released by Zoho ManageEngine.
Apply patches promptly to address known vulnerabilities and enhance system security.