Critical, CVSS 9.8RubyGemsPublished
Arbitrary file write in actionpack-page_caching gem
CVE-2020-8159 · GHSA-mg5p-95m9-rmfp
- Affected
- RubyGems actionpack-page_caching < 1.2.1
- Fixed in
- 1.2.1· Vendor fix available
- Issue
- There is a vulnerability in actionpackpage-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.
Recommended action: Upgrade to 1.2.1 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.