CVE-2022-20865 : What You Need to Know
Discover the impact of CVE-2022-20865, a vulnerability in Cisco FXOS Software allowing attackers to run arbitrary commands with root privileges. Learn about mitigation steps and how to prevent exploitation.
A vulnerability in the Cisco FXOS Software has been identified, allowing an authenticated attacker to inject arbitrary commands with root privileges. Here's what you need to know about CVE-2022-20865.
Understanding CVE-2022-20865
Cisco FXOS Software Command Injection Vulnerability
What is CVE-2022-20865?
The vulnerability in the CLI of Cisco FXOS Software permits an authenticated local attacker to execute arbitrary commands as root. The attacker needs Administrator privileges on the device to exploit this flaw, which is a result of inadequate input validation of user-supplied commands.
The Impact of CVE-2022-20865
Exploiting this vulnerability could enable the attacker to run commands on the underlying operating system with elevated root privileges. The CVSS v3.1 base score is 6.7, indicating a medium severity issue with high confidentiality, integrity, and availability impact.
Technical Details of CVE-2022-20865
Vulnerability Description
The vulnerability arises from insufficient validation of user-provided commands in the CLI of Cisco FXOS Software, allowing attackers with Administrator privileges to execute arbitrary commands as root.
Affected Systems and Versions
This vulnerability affects Cisco Firepower Extensible Operating System (FXOS) versions where Administrator privileges are present.
Exploitation Mechanism
By authenticating to the device, attackers can leverage the vulnerability by submitting crafted input to the affected command, enabling them to execute commands with elevated privileges.
Mitigation and Prevention
Immediate Steps to Take
Cisco recommends affected users to apply the necessary updates and patches provided by the vendor. Implementing proper access controls and ensuring Administrator privileges are not compromised can also mitigate the risk.
Long-Term Security Practices
Regularly monitor for security advisories from Cisco and other vendors, maintain strong password policies, and restrict access to critical systems to minimize the risk of unauthorized access.
Patching and Updates
Ensure that the Cisco FXOS Software is updated to the latest version to mitigate the vulnerability adequately.