CVE-2020-15956 Explained : Impact and Mitigation
Learn about CVE-2020-15956, a vulnerability in ACTi NVR3 Standard Server 3.0.12.42 allowing remote unauthenticated attackers to trigger a buffer overflow, potentially leading to application termination. Find mitigation steps and preventive measures.
ActiveMediaServer.exe in ACTi NVR3 Standard Server 3.0.12.42 allows remote unauthenticated attackers to trigger a buffer overflow and application termination via a malformed payload.
Understanding CVE-2020-15956
This CVE identifies a vulnerability in ACTi NVR3 Standard Server 3.0.12.42 that can be exploited by remote attackers.
What is CVE-2020-15956?
The vulnerability in ActiveMediaServer.exe in ACTi NVR3 Standard Server 3.0.12.42 enables remote unauthenticated attackers to execute a buffer overflow attack, leading to application termination by sending a specially crafted payload.
The Impact of CVE-2020-15956
The exploitation of this vulnerability could result in a denial of service (DoS) condition, potentially disrupting the availability of the affected system.
Technical Details of CVE-2020-15956
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability in ActiveMediaServer.exe allows remote unauthenticated attackers to trigger a buffer overflow, leading to application termination through a malformed payload.
Affected Systems and Versions
- Product: ACTi NVR3 Standard Server
- Version: 3.0.12.42
Exploitation Mechanism
The vulnerability can be exploited remotely by sending a specifically crafted payload to the ActiveMediaServer.exe component, causing a buffer overflow and subsequent application termination.
Mitigation and Prevention
To address CVE-2020-15956, follow these mitigation strategies:
Immediate Steps to Take
- Implement network segmentation to limit access to vulnerable components.
- Apply firewall rules to restrict unauthorized access to the affected system.
- Monitor network traffic for any signs of exploitation attempts.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Conduct security assessments and penetration testing to identify and remediate weaknesses.
Patching and Updates
- Apply patches or updates provided by the vendor to fix the vulnerability in ACTi NVR3 Standard Server 3.0.12.42.