CVE-2020-20236 Explained : Impact and Mitigation
Learn about CVE-2020-20236, a memory corruption vulnerability in Mikrotik RouterOs 6.46.3, allowing authenticated remote attackers to cause a Denial of Service. Find mitigation steps and prevention measures here.
Mikrotik RouterOs 6.46.3 (stable tree) has a memory corruption vulnerability in the /nova/bin/sniffer process, allowing an authenticated remote attacker to cause a Denial of Service due to improper memory access.
Understanding CVE-2020-20236
This CVE identifies a specific vulnerability in Mikrotik RouterOs 6.46.3 that can be exploited by an authenticated remote attacker.
What is CVE-2020-20236?
The vulnerability in Mikrotik RouterOs 6.46.3 allows attackers to trigger a Denial of Service by exploiting a memory corruption issue in the /nova/bin/sniffer process.
The Impact of CVE-2020-20236
The vulnerability can lead to a Denial of Service condition, impacting the availability of the affected system and potentially disrupting network operations.
Technical Details of CVE-2020-20236
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in Mikrotik RouterOs 6.46.3 is a memory corruption issue in the /nova/bin/sniffer process, enabling attackers to disrupt system operation.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
An authenticated remote attacker can exploit the memory corruption vulnerability in the /nova/bin/sniffer process to trigger a Denial of Service attack.
Mitigation and Prevention
Protecting systems from CVE-2020-20236 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches or updates provided by Mikrotik to address the vulnerability.
- Monitor network traffic for any suspicious activities that could indicate an ongoing attack.
Long-Term Security Practices
- Regularly update and patch all software and firmware to prevent known vulnerabilities.
- Implement strong authentication mechanisms to limit unauthorized access to the system.
Patching and Updates
Ensure that the latest patches and updates from Mikrotik are applied promptly to mitigate the risk of exploitation.