CVE-2023-36822: Uptime kuma Path Traversal Vulnerability
MODERATECVE-2023-36822 is a MODERATE (CVSS 6.5) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Uptime kuma libraries in the npm ecosystem. The issue involves uptime kuma's authenticated path traversal via plugin repository name may lead to unavailability or data loss. Remediation is available by upgrading affected packages to version 1.22.1.
CVE-2023-36822 at a Glance
Security Impact
CVSS: 6.5
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
How to Fix CVE-2023-36822
To remediate this vulnerability, upgrade all affected Uptime kuma dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
npm install uptime-kuma@1.22.1Run the following command in your project directory to verify that all resolved dependencies use the patched release:
npm ls uptime-kumaHow to Check if You Are Affected
To determine whether your Node.js application is affected by CVE-2023-36822, inspect your project dependencies using npm:
npm ls uptime-kumaAnalyze the terminal output to locate any version of Uptime kuma in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.22.1), your application is affected.
Note: The npm ls uptime-kuma command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Uptime kuma, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2023-36822 Affected Uptime kuma Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
uptime-kuma
|
npm |
< 1.22.1
|
1.22.1
|
References
Frequently Asked Questions
What is CVE-2023-36822?
Which Uptime kuma versions are affected?
What version fixes CVE-2023-36822?
Is uptime-kuma affected?
What is the CVSS score of CVE-2023-36822?
What CWE is associated with CVE-2023-36822?
How can I check npm dependencies for CVE-2023-36822?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-vr8x-74pm-6vj7",
"modified" : "2024-05-01T10:01:02Z",
"published" : "2024-05-01T10:01:02Z",
"aliases" : [ "CVE-2023-36822" ],
"summary" : "Uptime Kuma's authenticated path traversal via plugin repository name may lead to unavailability or data loss",
"details" : "### Summary\nA 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.\n\n### Details\nUptime 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.\nBefore a plugin is downloaded, the plugin installation directory is checked for existence. If it exists, it's removed before the plugin installation.\n\nBecause 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.\n\n### Impact\nThis vulnerability allows an authenticated attacker to delete files from the server Uptime Kuma is running on.\nDepending on which files are deleted, Uptime Kuma or the whole system may become unavailable due to data loss.\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "npm",
"name" : "uptime-kuma"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.22.1"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 1.22.0"
}
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/louislam/uptime-kuma/security/advisories/GHSA-vr8x-74pm-6vj7"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-36822"
}, {
"type" : "WEB",
"url" : "https://github.com/louislam/uptime-kuma/pull/3346"
}, {
"type" : "WEB",
"url" : "https://github.com/louislam/uptime-kuma/commit/a0736e04b2838aae198c2110db244eab6f87757b"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/louislam/uptime-kuma"
}, {
"type" : "WEB",
"url" : "https://github.com/louislam/uptime-kuma/blob/de74efb2e6601dcbcfed32cddefc4078a80fcb0b/server/plugins-manager.js#L75-L80"
}, {
"type" : "WEB",
"url" : "https://github.com/louislam/uptime-kuma/releases/tag/1.22.1"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-22" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2024-05-01T10:01:02Z",
"nvd_published_at" : "2023-07-05T22:15:09Z"
}
}