CVE-2020-20262 : Vulnerability Insights and Analysis
Learn about CVE-2020-20262, a vulnerability in Mikrotik RouterOs before 6.47 allowing an authenticated remote attacker to trigger a Denial of Service via a crafted packet. Find mitigation steps and prevention measures.
Mikrotik RouterOs before 6.47 (stable tree) is vulnerable to an assertion failure in the /ram/pckg/security/nova/bin/ipsec process, allowing an authenticated remote attacker to trigger a Denial of Service via a crafted packet.
Understanding CVE-2020-20262
This CVE identifies a specific vulnerability in Mikrotik RouterOs that can be exploited by an authenticated remote attacker to cause a Denial of Service.
What is CVE-2020-20262?
The vulnerability in Mikrotik RouterOs before version 6.47 allows an attacker to exploit an assertion failure in the ipsec process, leading to a Denial of Service condition.
The Impact of CVE-2020-20262
The vulnerability can be exploited by an authenticated remote attacker to disrupt the normal operation of the affected system, potentially causing service unavailability.
Technical Details of CVE-2020-20262
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises from an assertion failure in the /ram/pckg/security/nova/bin/ipsec process in Mikrotik RouterOs before version 6.47.
Affected Systems and Versions
- Mikrotik RouterOs before version 6.47 (stable tree)
Exploitation Mechanism
An authenticated remote attacker can exploit this vulnerability by sending a specially crafted packet to trigger the assertion failure, resulting in a Denial of Service.
Mitigation and Prevention
Protecting systems from CVE-2020-20262 requires specific actions to mitigate the risk.
Immediate Steps to Take
- Update Mikrotik RouterOs to version 6.47 or later to eliminate the vulnerability.
- Monitor network traffic for any suspicious activity 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
- Stay informed about security advisories from Mikrotik and apply patches promptly to address any new vulnerabilities.