CVE-2020-15307 : Vulnerability Insights and Analysis

Nozomi Guardian before 19.0.4 is vulnerable to stored XSS, allowing attackers to exploit the web front end by creating a malicious custom field.

Understanding CVE-2020-15307

Nozomi Guardian before 19.0.4 is susceptible to a stored XSS vulnerability that can be exploited by malicious actors.

What is CVE-2020-15307?

This CVE refers to a security flaw in Nozomi Guardian versions prior to 19.0.4 that enables attackers to execute stored cross-site scripting attacks through the creation of a specially crafted custom field.

The Impact of CVE-2020-15307

The vulnerability allows threat actors to inject and execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-15307

Nozomi Guardian before 19.0.4 is affected by a stored XSS vulnerability.

Vulnerability Description

Attackers can exploit the web front end by creating a custom field with a manipulated field name, enabling the execution of malicious scripts.

Affected Systems and Versions

Product: Nozomi Guardian
Vendor: Nozomi Networks
Versions Affected: All versions before 19.0.4

Exploitation Mechanism

The vulnerability is exploited by crafting a malicious field name within a custom field, allowing the injection and execution of unauthorized scripts.

Mitigation and Prevention

Immediate action is necessary to mitigate the risks associated with CVE-2020-15307.

Immediate Steps to Take

Update Nozomi Guardian to version 19.0.4 or later to patch the vulnerability.
Monitor and restrict user input to prevent the injection of malicious scripts.

Long-Term Security Practices

Regularly audit and review custom fields and user inputs for suspicious content.
Educate users on secure coding practices to prevent XSS vulnerabilities.

Patching and Updates

Apply security patches and updates promptly to ensure protection against known vulnerabilities.