CVE-2021-42753: fortinet fortiweb Path Traversal

Vulnerability summary

CVE-2021-42753 is a high (CVSS 8.5) Path Traversal vulnerability in fortinet fortiweb. EPSS estimates a 1.13% chance of exploitation in the next 30 days, higher than 65.8% of scored vulnerabilities.

Timeline

1. 02-02-2022
   PublishedVulnerability first disclosed.
2. 22-10-2024
   Last modifiedVulnerability information updated.

Description

An improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability [CWE-22] in FortiWeb management interface 6.4.1 and below, 6.3.15 and below, 6.2.x, 6.1.x, 6.0.x, 5.9.x and 5.8.x may allow an authenticated attacker to perform an arbitrary file and directory deletion in the device 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.