CVE-2023-40274: getzola zola Path Traversal

Vulnerability summary

CVE-2023-40274 is a high (CVSS 7.5) Path Traversal vulnerability in getzola zola. EPSS estimates a 1.10% chance of exploitation in the next 30 days, higher than 65.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 14-08-2023
   PublishedVulnerability first disclosed.
2. 09-10-2024
   Last modifiedVulnerability information updated.

Description

An issue was discovered in zola 0.13.0 through 0.17.2. The custom implementation of a web server, available via the "zola serve" command, allows directory traversal. The handle_request function, used by the server to process HTTP requests, does not account for sequences of special path control characters (../) in the URL when serving a file, which allows one to escape the webroot of the server and read arbitrary files from the filesystem.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')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.