CVE-2021-34768 : Security Advisory and Response
Learn about CVE-2021-34768 affecting Cisco IOS XE Software, allowing remote attackers to trigger a denial of service condition on Catalyst 9000 Family Wireless Controllers. Find mitigation steps and security practices.
A detailed analysis of the CVE-2021-34768 affecting Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers.
Understanding CVE-2021-34768
This section delves into the specifics of the vulnerability and its impact.
What is CVE-2021-34768?
The vulnerability lies in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers. It could allow an unauthenticated, remote attacker to trigger a denial of service condition on affected devices due to insufficient validation of CAPWAP packets.
The Impact of CVE-2021-34768
Exploitation could lead an attacker to crash and reload the device, resulting in a DoS situation.
Technical Details of CVE-2021-34768
Explore the intricacies of the vulnerability.
Vulnerability Description
The flaw is a result of inadequate validation of CAPWAP packets.
Affected Systems and Versions
Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers is affected by this vulnerability.
Exploitation Mechanism
An attacker could exploit the vulnerability by sending a malformed CAPWAP packet to the device.
Mitigation and Prevention
Discover how to mitigate the risks associated with CVE-2021-34768.
Immediate Steps to Take
Implement security measures to prevent exploitation of this vulnerability.
Long-Term Security Practices
Adopt long-term security practices to safeguard against such vulnerabilities.
Patching and Updates
Ensure timely patching of systems to protect against known vulnerabilities.