CVE-2021-40112 : Vulnerability Insights and Analysis

Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities

Understanding CVE-2021-40112

This CVE involves multiple vulnerabilities in the web-based management interface of Cisco Catalyst PON Series Switches Optical Network Terminal.

What is CVE-2021-40112?

The vulnerabilities could allow an unauthenticated, remote attacker to perform actions like logging in with default credentials, command injection, and configuration modification.

The Impact of CVE-2021-40112

The CVSS score is 10.0 (Critical) with high impacts on confidentiality, integrity, and availability, making it a severe threat.

Technical Details of CVE-2021-40112

This section covers specific technical aspects of the CVE.

Vulnerability Description

The vulnerabilities allow unauthorized access and manipulation of the Cisco Catalyst PON Series Switches.

Affected Systems and Versions

Affected Product: Cisco Catalyst PON Series
Affected Vendor: Cisco
Affected Version: n/a

Exploitation Mechanism

The vulnerabilities can be exploited by remote attackers without the need for any privileges, allowing them to compromise the system easily.

Mitigation and Prevention

For organizations and users to protect against CVE-2021-40112, the following steps can be taken:

Immediate Steps to Take

Disable Telnet protocol if not required
Change default credentials and implement strong passwords
Apply security patches provided by Cisco

Long-Term Security Practices

Regular security assessments and audits
Implement network segmentation and access control policies
Monitor network traffic for any suspicious activities

Patching and Updates

Install the latest updates and security patches from Cisco to address the vulnerabilities effectively.