CVE-2020-3552 : Vulnerability Insights and Analysis
Learn about CVE-2020-3552, a vulnerability in Cisco Aironet Access Points (APs) Software allowing adjacent attackers to cause denial of service. Find mitigation steps and prevention measures.
A vulnerability in the Ethernet packet handling of Cisco Aironet Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.
Understanding CVE-2020-3552
This CVE involves a specific vulnerability in Cisco Aironet Access Points (APs) Software that could be exploited by an attacker to trigger a DoS condition.
What is CVE-2020-3552?
The vulnerability in Cisco Aironet Access Points (APs) Software allows an adjacent attacker to disrupt the service of an affected device by exploiting insufficient input validation.
The Impact of CVE-2020-3552
The vulnerability could lead to a denial of service (DoS) condition on the affected device, potentially causing a reload due to a NULL pointer access.
Technical Details of CVE-2020-3552
This section provides more technical insights into the CVE.
Vulnerability Description
The vulnerability is a result of insufficient input validation in the Ethernet packet handling of Cisco Aironet Access Points (APs) Software.
Affected Systems and Versions
- Product: Cisco Aironet Access Point Software
- Vendor: Cisco
- Version: Not applicable
Exploitation Mechanism
- An unauthenticated, adjacent attacker can exploit the vulnerability by connecting as a wired client to the Ethernet interface of the affected device.
- The attacker needs to send a series of specific packets within a short time frame to trigger the vulnerability.
Mitigation and Prevention
Steps to address and prevent the CVE.
Immediate Steps to Take
- Apply vendor-provided patches or updates as soon as they are available.
- Monitor network traffic for any suspicious activity that could indicate exploitation of the vulnerability.
Long-Term Security Practices
- Regularly update and patch all software and firmware to mitigate potential vulnerabilities.
- Implement network segmentation and access controls to limit the impact of potential attacks.
Patching and Updates
- Stay informed about security advisories from Cisco and apply relevant patches promptly to secure the affected systems.