CVE-2020-20265 : What You Need to Know
Learn about CVE-2020-20265, a memory corruption vulnerability in Mikrotik RouterOs before 6.47. Find out the impact, affected systems, exploitation method, and mitigation steps.
Mikrotik RouterOs before 6.47 (stable tree) has a memory corruption vulnerability in the /ram/pckg/wireless/nova/bin/wireless process, allowing an authenticated remote attacker to trigger a Denial of Service via a crafted packet.
Understanding CVE-2020-20265
This CVE involves a specific vulnerability in Mikrotik RouterOs that can be exploited by an authenticated remote attacker.
What is CVE-2020-20265?
The vulnerability in Mikrotik RouterOs before version 6.47 allows an attacker to cause a Denial of Service by exploiting a memory corruption issue in a particular process.
The Impact of CVE-2020-20265
The impact of this vulnerability is the potential for a Denial of Service attack, which can disrupt the normal operation of affected systems.
Technical Details of CVE-2020-20265
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability lies in the /ram/pckg/wireless/nova/bin/wireless process of Mikrotik RouterOs before version 6.47, leading to memory corruption.
Affected Systems and Versions
- Affected Product: Mikrotik RouterOs
- Affected Version: Before 6.47 (stable tree)
Exploitation Mechanism
An authenticated remote attacker can exploit this vulnerability by sending a specially crafted packet to the vulnerable process, triggering the Denial of Service condition.
Mitigation and Prevention
Protecting systems from CVE-2020-20265 requires specific actions to mitigate the risk.
Immediate Steps to Take
- Update Mikrotik RouterOs to version 6.47 or later to eliminate the vulnerability.
- Implement strong network access controls to limit exposure to potential attackers.
Long-Term Security Practices
- Regularly monitor for security advisories and updates from Mikrotik to stay informed about potential vulnerabilities.
- Conduct regular security assessments and penetration testing to identify and address any security weaknesses.
Patching and Updates
- Apply patches and updates provided by Mikrotik promptly to ensure that systems are protected against known vulnerabilities.