CVE-2021-34762 : Vulnerability Insights and Analysis
Learn about CVE-2021-34762, a directory traversal vulnerability in Cisco Firepower Management Center (FMC) Software. Understand the impact, affected systems, and mitigation steps.
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to perform a directory traversal attack on an affected device. This vulnerability could result in the attacker being able to read or write arbitrary files on the device.
Understanding CVE-2021-34762
This section will provide detailed insights into the CVE-2021-34762 vulnerability.
What is CVE-2021-34762?
The vulnerability in Cisco Firepower Management Center (FMC) Software enables a remote attacker with valid device credentials to execute a directory traversal attack via the web-based management interface. The flaw arises from insufficient input validation of the HTTPS URL.
The Impact of CVE-2021-34762
Exploitation of this vulnerability could lead to a high severity attack, allowing unauthorized access to sensitive data on the affected device.
Technical Details of CVE-2021-34762
Let's dive into the technical aspects of CVE-2021-34762.
Vulnerability Description
The vulnerability involves a lack of proper input validation in the HTTPS URL within the web-based management interface of Cisco FMC, enabling a crafted HTTPS request to trigger directory traversal.
Affected Systems and Versions
The affected product is the Cisco Firepower Management Center (FMC) Software with no specific versions mentioned in the advisory.
Exploitation Mechanism
To exploit this vulnerability, an attacker would send a malicious HTTPS request containing directory traversal sequences to the targeted device, gaining unauthorized access to files.
Mitigation and Prevention
Discover how to mitigate the risks associated with CVE-2021-34762.
Immediate Steps to Take
It is crucial to apply security best practices to prevent exploitation of this vulnerability. Ensure device credentials are protected and implement network security measures.
Long-Term Security Practices
Regularly monitor and update the FMC software to address security vulnerabilities promptly. Conduct security assessments and audits to reinforce the overall security posture.
Patching and Updates
Stay informed about security advisories from Cisco and promptly apply patches and updates to the FMC software to mitigate known vulnerabilities.