CVE-2021-37177 Missing authorization in SINEMA Remote Connect Server

Q: Is CVE-2021-37177 being exploited?

There is no known exploitation of CVE-2021-37177 in the wild and no public exploit code.

Q: How do I fix CVE-2021-37177?

No fix has been published for CVE-2021-37177 yet. Limit exposure of the affected software until one is available.

Medium 6.5 Published 14 Sep 2021 Updated 23 Apr 2025

An unauthenticated attacker on the same network can manipulate syslog client status in Siemens SINEMA Remote Connect Server.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-37177?

CVE-2021-37177 is a medium-severity missing authorization vulnerability in Siemens Sinema Remote Connect Server, published on 14 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.0 SP2). The status provided by the syslog clients managed by the affected software can be manipulated by an unauthenticated attacker in the same network of the affected system.

Weakness: CWE-471

Which versions are affected by CVE-2021-37177?

It affects 1 product.

Products include Siemens Sinema Remote Connect Server.

How do I fix CVE-2021-37177?

No fix has been published for CVE-2021-37177 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-37177 being exploited?

There is no known exploitation of CVE-2021-37177 in the wild and no public exploit code.

All Siemens Sinema Remote Connect Server vulnerabilities

Sources

Also known as GHSA-3xq3-mvf9-543x.