CVE-2020-20222 : Vulnerability Insights and Analysis
Learn about CVE-2020-20222 affecting Mikrotik RouterOs 6.44.6. Find out how an authenticated remote attacker can exploit a memory corruption issue to cause a Denial of Service.
Mikrotik RouterOs 6.44.6 (long-term tree) suffers from a memory corruption vulnerability in the /nova/bin/sniffer process, allowing an authenticated remote attacker to cause a Denial of Service (NULL pointer dereference).
Understanding CVE-2020-20222
This CVE identifies a specific vulnerability in Mikrotik RouterOs 6.44.6 that can be exploited by an authenticated remote attacker.
What is CVE-2020-20222?
The vulnerability in Mikrotik RouterOs 6.44.6 allows attackers to trigger a Denial of Service by exploiting a memory corruption issue in the /nova/bin/sniffer process.
The Impact of CVE-2020-20222
The exploitation of this vulnerability can lead to a NULL pointer dereference, resulting in a Denial of Service condition on the affected system.
Technical Details of CVE-2020-20222
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability in Mikrotik RouterOs 6.44.6 involves a memory corruption issue in the /nova/bin/sniffer process, which can be abused by authenticated remote attackers.
Affected Systems and Versions
- Product: Mikrotik RouterOs 6.44.6 (long-term tree)
- Vendor: Mikrotik
- Version: n/a
Exploitation Mechanism
An authenticated remote attacker can exploit this vulnerability to trigger a Denial of Service by causing a NULL pointer dereference.
Mitigation and Prevention
Protecting systems from CVE-2020-20222 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Mikrotik promptly.
- Implement network segmentation to limit the impact of potential attacks.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch all software and firmware on network devices.
- Conduct security training for employees to raise awareness of potential threats.
- Utilize intrusion detection and prevention systems to enhance network security.
Patching and Updates
Ensure that all Mikrotik RouterOs installations are updated to the latest version to mitigate the vulnerability.