CVE-2021-40113 : Security Advisory and Response
Learn about CVE-2021-40113, multiple critical vulnerabilities in Cisco Catalyst PON Series Switches Optical Network Terminal. Find out the impact, affected systems, and mitigation steps here.
This CVE-2021-40113 article provides details about multiple vulnerabilities in the Cisco Catalyst PON Series Switches Optical Network Terminal.
Understanding CVE-2021-40113
This section delves into the significance of the CVE-2021-40113 vulnerability.
What is CVE-2021-40113?
CVE-2021-40113 encompasses various vulnerabilities in the web-based management interface of Cisco Catalyst PON Series Switches Optical Network Terminal (ONT). These flaws could allow unauthorized attackers to execute malicious activities like login with default credentials, command injection, and configuration modification.
The Impact of CVE-2021-40113
The vulnerabilities pose a critical threat with a base score of 10.0 according to CVSS v3.1 metrics. Attackers could exploit the flaws to gain high-level access and alter system integrity and availability.
Technical Details of CVE-2021-40113
Describing the technical aspects and implications of the CVE-2021-40113 vulnerability.
Vulnerability Description
The vulnerability in Cisco Catalyst PON Series Switches ONT enables unauthenticated remote attackers to perform unauthorized actions, compromising system security.
Affected Systems and Versions
- Affected Product: Cisco Catalyst PON Series
- Vendor: Cisco
- Affected Version: n/a
Exploitation Mechanism
The vulnerability allows attackers to gain unauthorized access via default credentials, execute command injections, and modify system configurations.
Mitigation and Prevention
Exploring the strategies to mitigate the CVE-2021-40113 risks.
Immediate Steps to Take
- Disable Telnet protocol if not required
- Apply strong, unique passwords for all accounts
- Monitor network traffic for any suspicious activities
Long-Term Security Practices
- Implement multi-factor authentication
- Regularly audit and update device firmware
- Conduct frequent security assessments
Patching and Updates
- Apply the latest security patches and updates provided by Cisco
- Follow best practices for secure network configuration and management