CVE-2023-49621 Hardcoded credentials in SIMATIC CN 4100

Critical 9.8 Published Updated

An attacker can use default admin credentials during intermediate installation to gain complete control of the SIMATIC CN 4100 device.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-49621?

CVE-2023-49621 is a critical vulnerability in Siemens SIMATIC CN 4100, published on 9 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V2.7). The "intermediate installation" system state of the affected application uses default credential with admin privileges. An attacker could use the credentials to gain complete control of the affected device.

Weakness: CWE-1392

Which versions are affected by CVE-2023-49621?

It affects 1 product.

Products include Siemens Simatic Cn 4100 Firmware.

How do I fix CVE-2023-49621?

No fix has been published for CVE-2023-49621 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-49621 being exploited?

There is no known exploitation of CVE-2023-49621 in the wild and no public exploit code.

Sources

Also known as GHSA-4hpf-94w8-jpmf.

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