CVE-2024-32977 OctoPrint Authentication Bypass via X-Forwarded-For Header when autologinLocal is enabled

High 7.1 Published Updated

Attackers can bypass authentication in OctoPrint by spoofing IP headers when autologinLocal is enabled, allowing unauthorized access to the 3D printer control interface.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2024-32977?

CVE-2024-32977 is a high-severity authentication bypass vulnerability in OctoPrint, published on 14 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

OctoPrint provides a web interface for controlling consumer 3D printers. OctoPrint versions up until and including 1.10.0 contain a vulnerability that allows an unauthenticated attacker to completely bypass the authentication if the `autologinLocal` option is enabled within `config.yaml`, even if they come from networks that are not configured as `localNetworks`, spoofing their IP via the `X-Forwarded-For` header. If autologin is not enabled, this vulnerability does not have any impact. The vulnerability has been patched in version 1.10.1. Until the patch has been applied, OctoPrint administrators who have autologin enabled on their instances should disable it and/or to make the instance inaccessible from potentially hostile networks like the internet.

Weakness: CWE-290

Which versions are affected by CVE-2024-32977?

3 open source packages ship an affected version, including octoprint and OctoPrint. It affects 1 product.

PackageAffectedFixed in
octoprint PyPIAll versions1.10.1
octoprint PyPIAll versions1.10.1
OctoPrint PyPIAll versions1.10.1

Products include Octoprint Octoprint.

How do I fix CVE-2024-32977?

Upgrade octoprint to 1.10.1 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2024-32977 being exploited?

There is no known exploitation of CVE-2024-32977 in the wild and no public exploit code.

Sources

Also known as GHSA-2vjq-hg5w-5gm7, PYSEC-2024-237.

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