CVE-2021-43800
Wiki.js Windows Local File System Directory Traversal Vulnerability
Description
Wiki.js is a wiki app built on Node.js. Prior to version 2.5.254, directory traversal outside of Wiki.js context is possible when a storage module with local asset cache fetching is enabled on a Windows host. A malicious user can potentially read any file on the file system by crafting a special URL that allows for directory traversal. This is only possible on a Wiki.js server running on Windows, when a storage module implementing local asset cache (e.g Local File System or Git) is enabled and that no web application firewall solution (e.g. cloudflare) strips potentially malicious URLs. Commit number 414033de9dff66a327e3f3243234852f468a9d85 fixes this vulnerability by sanitizing the path before it is passed on to the storage module. The sanitization step removes any windows directory traversal sequences from the path. As a workaround, disable any storage module with local asset caching capabilities (Local File System, Git).
INFO
Published Date :
Dec. 6, 2021, 7:15 p.m.
Last Modified :
Dec. 8, 2021, 3:25 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-43800.
| URL | Resource |
|---|---|
| https://github.com/Requarks/wiki/commit/414033de9dff66a327e3f3243234852f468a9d85 | Patch Third Party Advisory |
| https://github.com/Requarks/wiki/releases/tag/2.5.254 | Release Notes Third Party Advisory |
| https://github.com/Requarks/wiki/security/advisories/GHSA-r363-73gj-6j25 | Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-43800 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-43800 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Dec. 08, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/Requarks/wiki/commit/414033de9dff66a327e3f3243234852f468a9d85 No Types Assigned https://github.com/Requarks/wiki/commit/414033de9dff66a327e3f3243234852f468a9d85 Patch, Third Party Advisory Changed Reference Type https://github.com/Requarks/wiki/releases/tag/2.5.254 No Types Assigned https://github.com/Requarks/wiki/releases/tag/2.5.254 Release Notes, Third Party Advisory Changed Reference Type https://github.com/Requarks/wiki/security/advisories/GHSA-r363-73gj-6j25 No Types Assigned https://github.com/Requarks/wiki/security/advisories/GHSA-r363-73gj-6j25 Patch, Third Party Advisory Added CWE NIST CWE-22 Added CPE Configuration AND OR *cpe:2.3:a:requarks:wiki.js:*:*:*:*:*:*:*:* versions up to (excluding) 2.5.245 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-43800 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-43800
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} 0.01%
score
0.51640
percentile