Is CVE-2023-36822 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2023-36822 being exploited in the wild.

How severe is CVE-2023-36822?

Low severity, with a CVSS score of 3.1, published 1 May 2024.

Which products and versions are affected?

uptime-kuma (npm) SEMVER:introduced=0,fixed=1.22.1.

Is there a fix for CVE-2023-36822?

Yes. uptime-kuma (npm): upgrade to 1.22.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2023-36822 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2023-36822?

Check whether you run uptime-kuma (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2023-36822: Uptime Kuma path traversal in plugin installation

CVE-2023-36822 · Severity: low · CVSS 3.1 · Published 2024-05-01

Uptime Kuma is a website and service monitoring application that allows users to install third-party plugins. An authenticated attacker can exploit unsanitized plugin names to perform path traversal, enabling them to delete arbitrary files from the server. This can render Uptime Kuma or the entire system unavailable and cause permanent data loss.

Technologies: uptime-kuma (npm). Vendors: npm.

Quick answers

Is CVE-2023-36822 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2023-36822 being exploited in the wild.
How severe is CVE-2023-36822?: Low severity, with a CVSS score of 3.1, published 1 May 2024.
Which products and versions are affected?: uptime-kuma (npm) SEMVER:introduced=0,fixed=1.22.1.
Is there a fix for CVE-2023-36822?: Yes. uptime-kuma (npm): upgrade to 1.22.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2023-36822 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2023-36822?: Check whether you run uptime-kuma (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

uptime-kuma (npm): upgrade to 1.22.1 or later
```
npm install uptime-kuma@1.22.1
```

Technical details

The vulnerability is a path traversal flaw (CWE-22) in the plugin installation mechanism. When installing a plugin, the application constructs a file path using a user-supplied plugin name without proper validation or sanitization. Before downloading a plugin, the code checks if the installation directory exists and removes it recursively using fs.rmSync(). An attacker can bypass directory restrictions by using path traversal sequences (e.g., "../../../") in the plugin name parameter to reference and delete files outside the intended plugins directory. Exploitation requires authentication (low privilege) and network access to the WebSocket API endpoint. A successful attack can delete critical system files, causing service disruption and data loss. The vulnerability was fixed in version 1.22.1.

Affected products

Louis Lam Uptime Kuma <= 1.22.0

Identifiers

CVE-2023-36822
GHSA-vr8x-74pm-6vj7

Timeline

2023-07-04: disclosed
2024-05-01: advisory
2023: patched: Fixed in version 1.22.1

References

https://github.com/louislam/uptime-kuma/security/advisories/GHSA-vr8x-74pm-6vj7

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.