VDB
CVE-2020-8159
CVE-2020-8159
PUBLISHED
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.
EPSS 5.42% · 90.3th percentile
Risk Scores
EPSS Score
5.42%
90.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | ruby-actionpack-page-caching | 1.0.2-3, 1.0.2-4, 0 |
| Ubuntu:20.04:LTS | ruby-actionpack-page-caching | 0, 1.1.0-1 |
| Ubuntu:18.04:LTS | ruby-actionpack-page-caching | 0, 1.0.2-4 |
Exploit Intelligence
- https://groups.google.com/forum/#%21topic/rubyonrails-security/CFRVkEytdP8 (circl)
- [debian-lts-announce] 20210723 [SECURITY] [DLA 2719-1] ruby-actionpack-page-caching security update (circl)
- File writing by Directory traversal at actionpack-page_caching and RCE by it (hackerone)
- File writing by Directory traversal at actionpack-page_caching and RCE by it (hackerone)
- File writing by Directory traversal at actionpack-page_caching and RCE by it (hackerone)
Timeline
- CVE Published
- Jul 13, 2020 PoC Published
- Apr 14, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 7, 2023 EPSS Score
- Jul 14, 2023 EPSS Score
- Nov 8, 2023 EPSS Score
- Jun 21, 2024 EPSS Score
- Mar 17, 2025 EPSS Score
- Mar 29, 2025 EPSS Score
- Mar 30, 2025 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-8159 third-party-advisory
- https://groups.google.com/forum/#!topic/rubyonrails-security/CFRVkEytdP8 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-8159 third-party-advisory