CVE-2017-3838 : Security Advisory and Response

Cisco Secure Access Control System (ACS) has a vulnerability that could allow a remote attacker to execute a cross-site scripting (XSS) attack.

Understanding CVE-2017-3838

This CVE involves a security flaw in Cisco Secure Access Control System (ACS) that enables an unauthenticated remote attacker to conduct a cross-site scripting (XSS) attack.

What is CVE-2017-3838?

The vulnerability allows a remote attacker to perform a cross-site scripting (XSS) attack on the web interface of the affected system.
The attack is based on the Document Object Model (DOM) and targets users of the system.

The Impact of CVE-2017-3838

A successful exploit could lead to unauthorized access to sensitive information or the manipulation of user interactions on the affected system.

Technical Details of CVE-2017-3838

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The vulnerability in Cisco Secure Access Control System (ACS) allows for a DOM-based cross-site scripting (XSS) attack.

Affected Systems and Versions

Product: Cisco Secure Access Control System
Affected Version: 5.8(2.5)

Exploitation Mechanism

Remote attackers can exploit this vulnerability to execute a cross-site scripting (XSS) attack on the web interface of the affected system.

Mitigation and Prevention

Protecting systems from CVE-2017-3838 requires immediate action and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Cisco to address the vulnerability.
Monitor network traffic for any signs of exploitation.
Restrict network access to the affected system.

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities.
Conduct security training for users to recognize and report suspicious activities.

Patching and Updates

Stay informed about security advisories from Cisco and apply patches promptly to secure the system.