CVE-2020-8159: debian debian_linux Path Traversal

Vulnerability summary

CVE-2020-8159 is a critical (CVSS 9.8) Path Traversal vulnerability in debian debian_linux. EPSS estimates a 5.38% chance of exploitation in the next 30 days, higher than 92.5% of scored vulnerabilities.

Timeline

1. 12-05-2020
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

There is a vulnerability in actionpack_page-caching gem < v1.2.1 that allows an attacker to write arbitrary files to a web server, potentially resulting in remote code execution if the attacker can write unescaped ERB to a view.

• 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.