CVE-2020-3167 : Vulnerability Insights and Analysis
Learn about CVE-2020-3167, a high-severity vulnerability in Cisco FXOS and UCS Manager Software allowing attackers to execute arbitrary commands. Find mitigation steps and immediate actions here.
A vulnerability in the CLI of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system (OS).
Understanding CVE-2020-3167
This CVE involves a command injection vulnerability in Cisco FXOS and UCS Manager Software, potentially enabling attackers to run arbitrary commands on the OS.
What is CVE-2020-3167?
The vulnerability arises from insufficient input validation in the CLI of Cisco FXOS and UCS Manager Software. Attackers can exploit this by injecting crafted arguments into specific commands.
The Impact of CVE-2020-3167
- CVSS Base Score: 7.8 (High Severity)
- Attack Vector: Local
- Confidentiality, Integrity, and Availability Impact: High
- Privileges Required: Low
- Scope: Unchanged
- User Interaction: None
Technical Details of CVE-2020-3167
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability allows authenticated local attackers to execute arbitrary commands on the OS due to insufficient input validation in the CLI.
Affected Systems and Versions
- Affected Product: Cisco Adaptive Security Appliance (ASA) Software
- Vendor: Cisco
- Affected Versions: Unspecified
Exploitation Mechanism
Attackers can exploit the vulnerability by injecting crafted arguments into specific commands, potentially leading to arbitrary command execution on the OS.
Mitigation and Prevention
Protecting systems from CVE-2020-3167 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-provided patches promptly
- Monitor network traffic for signs of exploitation
- Restrict access to vulnerable systems
Long-Term Security Practices
- Regularly update and patch software and firmware
- Conduct security training for users and administrators
- Implement network segmentation and least privilege access
- Utilize intrusion detection and prevention systems
Patching and Updates
Ensure all affected systems are updated with the latest patches to mitigate the vulnerability.