CVE-2020-3482 : Vulnerability Insights and Analysis
Learn about CVE-2020-3482, a vulnerability in Cisco Expressway software allowing unauthorized network access. Find mitigation steps and prevention measures here.
A vulnerability in the Traversal Using Relays around NAT (TURN) server component of Cisco Expressway software could allow an unauthenticated, remote attacker to bypass security controls and send network traffic to restricted destinations.
Understanding CVE-2020-3482
This CVE involves a security vulnerability in Cisco Expressway software that could potentially enable unauthorized network access.
What is CVE-2020-3482?
The vulnerability in the TURN server component of Cisco Expressway software allows attackers to send specially crafted network traffic, bypassing security controls, and potentially gain unauthorized network access.
The Impact of CVE-2020-3482
The vulnerability could lead to unauthorized network access, allowing attackers to send traffic through the affected software to destinations beyond the application.
Technical Details of CVE-2020-3482
This section provides more technical insights into the CVE.
Vulnerability Description
The vulnerability arises from improper validation of specific connection information by the TURN server within the affected Cisco Expressway software.
Affected Systems and Versions
- Product: Cisco TelePresence Video Communication Server (VCS) Expressway
- Vendor: Cisco
- Version: Not applicable
Exploitation Mechanism
Attackers can exploit this issue by sending specially crafted network traffic to the affected software, potentially gaining unauthorized network access.
Mitigation and Prevention
Protecting systems from CVE-2020-3482 is crucial to prevent unauthorized access.
Immediate Steps to Take
- Apply vendor-provided patches or updates promptly.
- Monitor network traffic for any suspicious activity.
- Implement strong network access controls.
Long-Term Security Practices
- Regularly update and patch software to address vulnerabilities.
- Conduct security assessments and audits periodically.
- Educate users on safe computing practices.
Patching and Updates
- Cisco may release patches or updates to address the vulnerability; ensure timely implementation to secure systems.