CVE-2018-0420: cisco cisco wireless lan controller (wlc) Path Traversal

Vulnerability summary

CVE-2018-0420 is a medium (CVSS 6.5) Path Traversal vulnerability in cisco cisco wireless lan controller (wlc). EPSS estimates a 4.64% chance of exploitation in the next 30 days, higher than 91.6% of scored vulnerabilities.

Timeline

1. 17-10-2018
   PublishedVulnerability first disclosed.
2. 26-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the web-based interface of Cisco Wireless LAN Controller Software could allow an authenticated, remote attacker to view sensitive information. The issue is due to improper sanitization of user-supplied input in HTTP request parameters that describe filenames and pathnames. An attacker could exploit this vulnerability by using directory traversal techniques to submit a path to a desired file location. A successful exploit could allow the attacker to view system files on the targeted device, which may contain sensitive information.

• 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.