Path Traversal in Rubyonrails Actionpack Page-Caching
CVE-2020-8159
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.054 (92.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.052 · newest: 0.054 · change: +0.001
Affected products
- Rubyonrails Actionpack Page-Caching
- Debian Linux — versions 9.0
- Https://github.com/rails/actionpack-Page Caching — versions v1.2.1
Weakness classification (CWE)
References
- groups.google.com/forum/
- lists.debian.org/debian-lts-announce/2021/07/msg00019.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8159?
- CVE-2020-8159 is a critical-severity vulnerability in Rubyonrails Actionpack Page-Caching, classified under Path Traversal. CVSS score: 9.8/10. Published 2020-05-12.
- How severe is CVE-2020-8159?
- Critical severity. CVSS v3 base score is 9.8 out of 10.