CVE-2022-36361 Memory corruption in LOGO! 12/24RCE

Critical 9.8 Published 11 Oct 2022 Updated 20 Nov 2024

An attacker can exploit improper TCP packet validation in Siemens LOGO! devices to cause buffer overflows and execute arbitrary code.

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-2022-36361?

CVE-2022-36361 is a critical memory corruption vulnerability in Siemens LOGO! 12/24RCE, published on 11 Oct 2022. 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 LOGO! 12/24RCE (6ED1052-1MD08-0BA1) (All versions), LOGO! 12/24RCEo (6ED1052-2MD08-0BA1) (All versions), LOGO! 230RCE (6ED1052-1FB08-0BA1) (All versions), LOGO! 230RCEo (6ED1052-2FB08-0BA1) (All versions), LOGO! 24CE (6ED1052-1CC08-0BA1) (All versions), LOGO! 24CEo (6ED1052-2CC08-0BA1) (All versions), LOGO! 24RCE (6ED1052-1HB08-0BA1) (All versions), LOGO! 24RCEo (6ED1052-2HB08-0BA1) (All versions), SIPLUS LOGO! 12/24RCE (6AG1052-1MD08-7BA1) (All versions), SIPLUS LOGO! 12/24RCEo (6AG1052-2MD08-7BA1) (All versions), SIPLUS LOGO! 230RCE (6AG1052-1FB08-7BA1) (All versions), SIPLUS LOGO! 230RCEo (6AG1052-2FB08-7BA1) (All versions), SIPLUS LOGO! 24CE (6AG1052-1CC08-7BA1) (All versions), SIPLUS LOGO! 24CEo (6AG1052-2CC08-7BA1) (All versions), SIPLUS LOGO! 24RCE (6AG1052-1HB08-7BA1) (All versions), SIPLUS LOGO! 24RCEo (6AG1052-2HB08-7BA1) (All versions). Affected devices do not properly validate the structure of TCP packets in several methods. This could allow an attacker to cause buffer overflows, get control over the instruction counter and run custom code.

Weakness: CWE-120

Which versions are affected by CVE-2022-36361?

It affects 2 products.

Products include Siemens Logo\!8 Bm Fs-05 Firmware, Siemens Logo\! 8 Bm Firmware.

How do I fix CVE-2022-36361?

No fix has been published for CVE-2022-36361 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-36361 being exploited?

There is no known exploitation of CVE-2022-36361 in the wild and no public exploit code.

Sources

Also known as GHSA-jhfv-fgvm-hh32.