CVE-2020-3382 : Vulnerability Insights and Analysis
Learn about CVE-2020-3382, a critical vulnerability in Cisco Data Center Network Manager (DCNM) allowing unauthorized actions with administrative privileges. Find mitigation steps and long-term security practices here.
A vulnerability in the REST API of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions with administrative privileges on an affected device.
Understanding CVE-2020-3382
This CVE involves a critical authentication bypass vulnerability in Cisco Data Center Network Manager (DCNM).
What is CVE-2020-3382?
The vulnerability in the REST API of Cisco DCNM allows an attacker to bypass authentication and perform unauthorized actions with administrative rights due to a shared static encryption key.
The Impact of CVE-2020-3382
The vulnerability has a CVSS base score of 9.8, indicating a critical severity level. If exploited, an attacker could execute arbitrary actions with high impact on confidentiality, integrity, and availability.
Technical Details of CVE-2020-3382
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The flaw arises from multiple installations sharing a static encryption key, enabling an attacker to craft a valid session token and gain administrative privileges.
Affected Systems and Versions
- Product: Cisco Data Center Network Manager
- Vendor: Cisco
- Affected Version: Not applicable (n/a)
Exploitation Mechanism
The attacker can exploit the vulnerability by utilizing the shared static key to create a valid session token, granting unauthorized access through the REST API.
Mitigation and Prevention
Protecting systems from CVE-2020-3382 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-recommended patches or updates promptly to mitigate the vulnerability.
- Monitor network traffic for any suspicious activities that could indicate exploitation attempts.
Long-Term Security Practices
- Implement network segmentation to limit the impact of potential breaches.
- Regularly review and update access control policies to prevent unauthorized access.
Patching and Updates
Regularly check for security advisories from Cisco and apply patches or updates to address known vulnerabilities.