CVE-2020-9475 : What You Need to Know

The S. Siedle & Soehne SG 150-0 Smart Gateway before 1.2.4 allows local privilege escalation via a race condition in logrotate. An attacker with network access can exploit this vulnerability to gain root access on the gateway.

Understanding CVE-2020-9475

What is CVE-2020-9475?

The CVE-2020-9475 vulnerability in the S. Siedle & Soehne SG 150-0 Smart Gateway allows attackers to escalate privileges locally through a race condition in logrotate.

The Impact of CVE-2020-9475

This vulnerability enables attackers with network access to achieve root access on the gateway, potentially leading to unauthorized control and manipulation of the device.

Technical Details of CVE-2020-9475

Vulnerability Description

The vulnerability arises from a race condition in logrotate, which can be exploited by chaining exploits to gain root access on the Smart Gateway.

Affected Systems and Versions

Product: S. Siedle & Soehne SG 150-0 Smart Gateway
Versions Affected: Before 1.2.4

Exploitation Mechanism

Attackers with network access can exploit the race condition in logrotate to execute an exploit chain, ultimately achieving root access on the gateway.

Mitigation and Prevention

Immediate Steps to Take

Update the Smart Gateway to version 1.2.4 or later to patch the vulnerability.
Implement network segmentation to restrict access to the gateway.

Long-Term Security Practices

Regularly monitor and audit system logs for any suspicious activities.
Conduct security assessments and penetration testing to identify and address vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by the vendor.
Apply patches promptly to ensure the security of the Smart Gateway.