CVE-2019-1620 : What You Need to Know
Learn about CVE-2019-1620, a critical vulnerability in Cisco Data Center Network Manager allowing unauthorized file uploads and remote code execution. Find mitigation steps and patching details here.
A flaw in the web-based administration interface of Cisco Data Center Network Manager (DCNM) allows unauthorized remote attackers to upload unauthorized files onto affected devices, potentially leading to remote code execution.
Understanding CVE-2019-1620
What is CVE-2019-1620?
This CVE refers to an arbitrary file upload and remote code execution vulnerability in Cisco Data Center Network Manager (DCNM).
The Impact of CVE-2019-1620
The vulnerability could enable attackers to upload manipulated data onto affected devices, allowing them to write unauthorized files and execute code with full privileges.
Technical Details of CVE-2019-1620
Vulnerability Description
The flaw stems from incorrect permission configurations within the DCNM software, facilitating unauthorized file uploads and potential code execution.
Affected Systems and Versions
- Product: Cisco Data Center Network Manager
- Vendor: Cisco
- Versions Affected: Less than 11.2(1) (unspecified/custom)
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- User Interaction: None
- CVSS Score: 9.8 (Critical)
- Impact: High availability, confidentiality, and integrity
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor-provided patches immediately
- Monitor network traffic for signs of exploitation
- Restrict access to the affected system
Long-Term Security Practices
- Regularly update and patch software and systems
- Implement network segmentation and access controls
- Conduct regular security assessments and audits
Patching and Updates
- Refer to the vendor's security advisory for patching instructions and updates