CVE-2023-27409 Path traversal in SCALANCE LPE9403

Q: Is CVE-2023-27409 being exploited?

There is no known exploitation of CVE-2023-27409 in the wild and no public exploit code.

Q: How do I fix CVE-2023-27409?

No fix has been published for CVE-2023-27409 yet. Limit exposure of the affected software until one is available.

Low 2.5 Published 9 May 2023 Updated 28 Jan 2025

An authenticated attacker with SSH access can exploit a path traversal in the deviceinfo binary to read arbitrary files named address.

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

What is CVE-2023-27409?

CVE-2023-27409 is a low-severity path traversal vulnerability in Siemens SCALANCE LPE9403, published on 9 May 2023. 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 SCALANCE LPE9403 (All versions < V2.1). A path traversal vulnerability was found in the `deviceinfo` binary via the `mac` parameter. This could allow an authenticated attacker with access to the SSH interface on the affected device to read the contents of any file named `address`.

Weakness: CWE-22

Which versions are affected by CVE-2023-27409?

It affects 1 product.

Products include Siemens Scalance Lpe9403 Firmware.

How do I fix CVE-2023-27409?

No fix has been published for CVE-2023-27409 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2023-27409 being exploited?

There is no known exploitation of CVE-2023-27409 in the wild and no public exploit code.

Sources

Also known as GHSA-gj9w-8jqj-698c.