CVE-2018-1157 : Vulnerability Insights and Analysis

A vulnerability in Mikrotik RouterOS versions prior to 6.42.7 and 6.40.9 can lead to memory exhaustion when an authenticated remote attacker sends a specially crafted HTTP POST request.

Understanding CVE-2018-1157

This CVE involves a vulnerability in Mikrotik RouterOS that could potentially crash the HTTP server and cause system reboots.

What is CVE-2018-1157?

The vulnerability in Mikrotik RouterOS versions before 6.42.7 and 6.40.9 allows an authenticated remote attacker to trigger memory exhaustion by sending a specific HTTP POST request, leading to potential system crashes and reboots.

The Impact of CVE-2018-1157

The exploitation of this vulnerability can result in a denial of service (DoS) condition, disrupting network services and potentially causing system downtime.

Technical Details of CVE-2018-1157

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in Mikrotik RouterOS versions prior to 6.42.7 and 6.40.9 allows an authenticated remote attacker to exhaust memory by sending a crafted HTTP POST request, potentially crashing the HTTP server and causing system reboots.

Affected Systems and Versions

Mikrotik RouterOS versions before 6.42.7 and 6.40.9

Exploitation Mechanism

An authenticated remote attacker sends a specifically crafted HTTP POST request

Mitigation and Prevention

Protecting systems from CVE-2018-1157 is crucial to maintaining network security.

Immediate Steps to Take

Update Mikrotik RouterOS to versions 6.42.7 or 6.40.9 to mitigate the vulnerability
Monitor network traffic for any suspicious HTTP POST requests

Long-Term Security Practices

Regularly update and patch all software and firmware to prevent known vulnerabilities
Implement network segmentation and access controls to limit the impact of potential attacks

Patching and Updates

Refer to Mikrotik's official website for the latest patches and updates to address CVE-2018-1157