CVE-2022-46143 Information disclosure in RUGGEDCOM RM1224 LTE(4G) EU

Medium 5.1 Published 13 Dec 2022 Updated 14 Jan 2025

An authenticated attacker can read uninitialized memory via TFTP blocksize flaws, potentially exposing sensitive data on Siemens industrial routers.

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

What is CVE-2022-46143?

CVE-2022-46143 is a medium-severity vulnerability in Siemens RUGGEDCOM RM1224 LTE(4G) EU, published on 13 Dec 2022. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Affected devices do not check the TFTP blocksize correctly. This could allow an authenticated attacker to read from an uninitialized buffer that potentially contains previously allocated data.

Weakness: CWE-1284

Which versions are affected by CVE-2022-46143?

It affects 101 products.

Products include Siemens Ruggedcom Rm1224 Lte\(4g\) Eu Firmware, Siemens Ruggedcom Rm1224 Lte\(4g\) Nam Firmware, Siemens Scalance M804pb Firmware, Siemens Scalance M812-1 Adsl-Router Firmware, Siemens Scalance M816-1 Adsl-Router Firmware, Siemens Scalance M826-2 Shdsl-Router Firmware and 95 more.

How do I fix CVE-2022-46143?

No fix has been published for CVE-2022-46143 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-46143 being exploited?

There is no known exploitation of CVE-2022-46143 in the wild and no public exploit code.

Sources

Also known as GHSA-v7cj-vm62-r38r.