CVE-2020-8162

moderate-risk
Published 2020-06-19

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.

Do I need to act?

~
1.5% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Debian Rubyonrails

References (6)

Mailing List https://groups.google.com/g/rubyonrails-security/c/PjU3946mreQ
Exploit https://hackerone.com/reports/789579
Third Party Advisory https://www.debian.org/security/2020/dsa-4766
Mailing List https://groups.google.com/g/rubyonrails-security/c/PjU3946mreQ
Exploit https://hackerone.com/reports/789579
Third Party Advisory https://www.debian.org/security/2020/dsa-4766
37
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 4/34 · Minimal
Exposure 7/34 · Low