CVE-2023-36822: Uptime Kuma authenticated path traversal via plugin repository name may lead to unavailability or data loss
First published: Wed Jul 05 2023(Updated: )
### Summary A path traversal vulnerability via the plugin repository name allows an authenticated attacker to delete files on the server leading to unavailability and potentially data loss. ### Details Uptime Kuma allows authenticated users to install plugins from an official list of plugins. This feature is currently disabled in the web interface, but the corresponding API endpoints are still available after login. Before a plugin is downloaded, the plugin installation directory is checked for existence. If it exists, it's removed before the plugin installation. Because the plugin is not validated against the official list of plugins or sanitized, the check for existence and the removal of the plugin installation directory are prone to path traversal. ### Impact This vulnerability allows an authenticated attacker to delete files from the server Uptime Kuma is running on. Depending on which files are deleted, Uptime Kuma or the whole system may become unavailable due to data loss.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| npm/uptime-kuma | <=1.22.0 | 1.22.1 |
| Uptime Kuma | <1.22.1 |
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Reference Links
- https://github.com/louislam/uptime-kuma/blob/de74efb2e6601dcbcfed32cddefc4078a80fcb0b/server/plugins-manager.js#L75-L80
- https://github.com/louislam/uptime-kuma/pull/3346
- https://github.com/louislam/uptime-kuma/releases/tag/1.22.1
- https://github.com/louislam/uptime-kuma/security/advisories/GHSA-vr8x-74pm-6vj7
- https://nvd.nist.gov/vuln/detail/CVE-2023-36822
- https://github.com/louislam/uptime-kuma/commit/a0736e04b2838aae198c2110db244eab6f87757b
- https://github.com/advisories/GHSA-vr8x-74pm-6vj7 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2023-36822?
CVE-2023-36822 has a high severity rating due to its potential to allow authenticated attackers to delete server files.
How do I fix CVE-2023-36822?
To fix CVE-2023-36822, upgrade Uptime Kuma to version 1.22.1 or later.
What kind of vulnerability is CVE-2023-36822?
CVE-2023-36822 is a path traversal vulnerability that allows unauthorized file deletion on the server.
Who is affected by CVE-2023-36822?
Users of Uptime Kuma versions up to 1.22.0 are affected by CVE-2023-36822.
What can an attacker do with CVE-2023-36822?
An attacker exploiting CVE-2023-36822 can delete files on the server, leading to unavailability and potential data loss.
- agent/type
- collector/github-advisory-latest
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