CVE-2020-3381 Explained : Impact and Mitigation
Learn about CVE-2020-3381, a high-severity vulnerability in Cisco SD-WAN vManage Software allowing remote attackers to conduct directory traversal attacks. Find mitigation steps and preventive measures here.
A vulnerability in the web management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct directory traversal attacks and obtain read and write access to sensitive files on a targeted system.
Understanding CVE-2020-3381
This CVE involves a directory traversal vulnerability in Cisco SD-WAN vManage Software.
What is CVE-2020-3381?
The vulnerability allows an authenticated remote attacker to perform directory traversal attacks, potentially gaining unauthorized access to sensitive files on the system.
The Impact of CVE-2020-3381
- CVSS Base Score: 8.8 (High Severity)
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2020-3381
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability arises from inadequate validation of uploaded files, enabling attackers to upload crafted files and potentially view or modify arbitrary files on the system.
Affected Systems and Versions
- Affected Product: Cisco SD-WAN vManage
- Affected Version: Not Applicable
Exploitation Mechanism
Attackers can exploit this vulnerability by uploading a malicious file to the affected system, leveraging directory traversal techniques.
Mitigation and Prevention
Protecting systems from CVE-2020-3381 requires immediate action and long-term security practices.
Immediate Steps to Take
- Apply vendor-provided patches or updates promptly.
- Monitor system logs for any suspicious activities.
- Restrict access to the web management interface.
Long-Term Security Practices
- Regularly update and patch software and systems.
- Conduct security training for users to recognize and report suspicious activities.
- Implement network segmentation to limit the impact of potential breaches.
- Employ intrusion detection and prevention systems.
Patching and Updates
Ensure that the latest patches and updates from Cisco are applied to mitigate the vulnerability.