CVE-2020-3130 : What You Need to Know
Learn about CVE-2020-3130, a vulnerability in Cisco Unity Connection allowing remote attackers to overwrite files. Find mitigation steps and long-term security practices here.
A vulnerability in the web management interface of Cisco Unity Connection could allow an authenticated remote attacker to overwrite files on the underlying filesystem. This CVE was published on January 22, 2020, by Cisco.
Understanding CVE-2020-3130
This CVE describes a directory traversal vulnerability in Cisco Unity Connection, affecting the product's web management interface.
What is CVE-2020-3130?
The vulnerability in Cisco Unity Connection allows an authenticated remote attacker to overwrite files on the underlying filesystem due to insufficient input validation.
The Impact of CVE-2020-3130
The vulnerability has a CVSS base score of 5.9, indicating a medium severity issue. An attacker could exploit this to overwrite files on the affected system's filesystem, requiring valid administrator credentials.
Technical Details of CVE-2020-3130
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows an authenticated remote attacker to overwrite files on the underlying filesystem by sending a crafted HTTP request to the web management interface.
Affected Systems and Versions
- Product: Cisco Unity Connection
- Vendor: Cisco
- Versions affected: Not applicable (n/a)
Exploitation Mechanism
- Attack Complexity: High
- Attack Vector: Network
- Privileges Required: High
- User Interaction: None
- Scope: Unchanged
- Integrity Impact: High
- Availability Impact: High
- Confidentiality Impact: None
Mitigation and Prevention
To address CVE-2020-3130, follow these mitigation steps:
Immediate Steps to Take
- Apply the latest security patches from Cisco.
- Monitor network traffic for any suspicious activity.
- Restrict access to the web management interface.
Long-Term Security Practices
- Regularly update and patch all software and systems.
- Conduct security training for administrators on best practices.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
- Stay informed about security advisories from Cisco.
- Implement a robust patch management process to apply updates promptly.