CVE-2017-6776 Explained : Impact and Mitigation

Cisco Elastic Services Controller (ESC) has a vulnerability that could allow a remote attacker to conduct a cross-site scripting (XSS) attack without authentication.

Understanding CVE-2017-6776

This CVE involves a flaw in the web framework of Cisco Elastic Services Controller (ESC) that could potentially lead to a cross-site scripting (XSS) attack.

What is CVE-2017-6776?

The vulnerability allows a remote attacker to execute arbitrary script code or access sensitive browser-based information by exploiting incomplete validation of user input.

The Impact of CVE-2017-6776

Successful exploitation could enable an attacker to carry out a cross-site scripting (XSS) attack against a user of the web interface without authentication.

Technical Details of CVE-2017-6776

This section provides more technical insights into the vulnerability.

Vulnerability Description

The flaw in the web framework of Cisco ESC allows attackers to inject malicious code into user requests, potentially leading to the execution of arbitrary script code.

Affected Systems and Versions

Product: Elastic Services Controller
Vendor: Cisco Systems, Inc.
Affected Versions: 2.2(9.76), 2.3(1)

Exploitation Mechanism

Attackers can exploit this vulnerability by persuading users to click on malicious links or intercepting user requests to inject malicious code.

Mitigation and Prevention

Protecting systems from CVE-2017-6776 is crucial for maintaining security.

Immediate Steps to Take

Apply security patches provided by Cisco promptly.
Educate users about the risks of clicking on unknown links.

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities.
Implement web application firewalls to detect and block XSS attacks.

Patching and Updates

Stay informed about security advisories from Cisco and apply patches as soon as they are released.