CVE-2020-8162
Circumvention of file size limits in ActiveStorage
7.5
HIGH
CVSS 3.1
EPSS 1.5%
Description
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 limits.
How to fix CVE-2020-8162
To remediate CVE-2020-8162, upgrade the affected package to a fixed version below.
- Debian/rails—upgrade to 2:5.2.4.3+dfsg-1 or later
- —upgrade to 5.2.4.3 or later
Is CVE-2020-8162 being exploited?
Low — EPSS is 1.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2:5.2.4.3+dfsg-1
- >= 5.0.0, < 5.2.4.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |