Arbitrary file upload in Rubyonrails Rails
CVE-2020-8162
A client side enforcement of server side security vulnerability exists in rails < 5.2.4.2 and rails < 6.0.3.1 ActiveStorage's S3 adapter that allows the Content-Length of a direct file upload to be modified by an end user bypassing upload…
EPSS: 0.031 (86.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Rubyonrails Rails
- Debian Debian_linux — versions 10.0
- N/a Https://github.com/rails/rails — versions rails >= 5.2.4.3, rails >= 6.0.3.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Exploit, Third Party Advisory, x_refsource_MISC)
- support@hackerone.com (Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
- support@hackerone.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2020-8162?
- CVE-2020-8162 is a high-severity vulnerability in Rubyonrails Rails, classified under CWE-602. CVSS score: 7.5/10. Published 2020-06-19.
- How severe is CVE-2020-8162?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-8162 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.