CVE-2023-48712 User authorization bug leading to privilege escalation in warpgate

High 7.1 Published 24 Nov 2023 Updated 2 Aug 2024

Attackers can escalate privileges to admin by exploiting an authentication flaw in warpgate when single-factor authentication is enabled.

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-2023-48712?

CVE-2023-48712 is a high-severity authentication bypass vulnerability in warp-tech warpgate, published on 24 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Warpgate is an open source SSH, HTTPS and MySQL bastion host for Linux. In affected versions there is a privilege escalation vulnerability through a non-admin user's account. Limited users can impersonate another user's account if only single-factor authentication is configured. If a user knows an admin username, opens the login screen and attempts to authenticate with an incorrect password they can subsequently enter a valid non-admin username and password they will be logged in as the admin user. All installations prior to version 0.9.0 are affected. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-863

Which versions are affected by CVE-2023-48712?

It affects 1 product.

Products include Warpgate Project Warpgate.

How do I fix CVE-2023-48712?

No fix has been published for CVE-2023-48712 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2023-48712 being exploited?

There is no known exploitation of CVE-2023-48712 in the wild and no public exploit code.

Sources

Also known as GHSA-c94j-vqr5-3mxr.