CVE-2020-3467 : Vulnerability Insights and Analysis
Learn about CVE-2020-3467, an authorization bypass vulnerability in Cisco Identity Services Engine (ISE) software. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to modify parts of the configuration on an affected device.
Understanding CVE-2020-3467
This CVE involves an authorization bypass vulnerability in Cisco Identity Services Engine (ISE) software.
What is CVE-2020-3467?
The vulnerability in the web-based management interface of Cisco ISE allows a remote attacker with valid Read-Only Administrator credentials to modify device configurations improperly due to role-based access control (RBAC) enforcement issues.
The Impact of CVE-2020-3467
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- Scope: Changed
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
- CVSS Base Score: 7.7 (High)
Technical Details of CVE-2020-3467
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability allows an authenticated attacker to send crafted HTTP requests to the affected device, leading to unauthorized configuration modifications that can compromise network security.
Affected Systems and Versions
- Product: Cisco Identity Services Engine Software
- Vendor: Cisco
- Affected Version: Not Applicable
Exploitation Mechanism
- An attacker with valid Read-Only Administrator credentials can exploit the vulnerability by sending a crafted HTTP request to the device, enabling unauthorized configuration changes.
Mitigation and Prevention
Protect your systems from CVE-2020-3467 with these mitigation strategies.
Immediate Steps to Take
- Apply vendor-provided patches or updates promptly.
- Monitor network traffic for any suspicious activity.
- Restrict access to the web-based management interface.
Long-Term Security Practices
- Regularly review and update RBAC policies.
- Conduct security training for administrators to recognize and respond to potential threats.
- Implement network segmentation to limit the impact of unauthorized access.
Patching and Updates
- Stay informed about security advisories and updates from Cisco.
- Apply patches as soon as they are available to prevent exploitation of known vulnerabilities.