CVE-2021-1350 : What You Need to Know
Learn about CVE-2021-1350, a vulnerability in the web UI of Cisco Umbrella that could impact service performance. Explore its implications, technical details, and mitigation strategies.
A vulnerability in the web UI of Cisco Umbrella could allow an unauthenticated, remote attacker to negatively affect the performance of this service. This article provides an overview of CVE-2021-1350, including its impact, technical details, and mitigation strategies.
Understanding CVE-2021-1350
This section delves into the details of the vulnerability and its implications.
What is CVE-2021-1350?
The vulnerability in the web UI of Cisco Umbrella could be exploited by sending crafted HTTPS packets at a high rate, leading to a performance degradation of the web UI.
The Impact of CVE-2021-1350
The vulnerability poses a medium threat with a CVSS score of 5.3, allowing attackers to impact the performance of the web UI.
Technical Details of CVE-2021-1350
This section explores the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability stems from insufficient rate limiting controls in the web UI of Cisco Umbrella, enabling attackers to affect service performance.
Affected Systems and Versions
The Cisco Umbrella Insights Virtual Appliance is affected by this vulnerability, with all versions being susceptible.
Exploitation Mechanism
Attackers can exploit this vulnerability remotely by flooding the web UI with malicious HTTPS packets.
Mitigation and Prevention
Discover how to address and prevent the CVE-2021-1350 vulnerability.
Immediate Steps to Take
Organizations should apply the patches provided by Cisco to mitigate the risk of exploitation.
Long-Term Security Practices
Enforce strict rate limiting controls and monitor network traffic to detect and prevent similar attacks in the future.
Patching and Updates
Regularly update and patch the Cisco Umbrella Insights Virtual Appliance to protect against known vulnerabilities.