CVE-2020-8162

Public Exploit

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.

Categories

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.33% Top 20%
Vendor Advisory debian.org
Affected: n/a https://github.com/rails/rails
Published at:
Updated at:

References

Link Tags
https://hackerone.com/reports/789579 third party advisory exploit
https://groups.google.com/g/rubyonrails-security/c/PjU3946mreQ mailing list third party advisory patch
https://www.debian.org/security/2020/dsa-4766 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-8162?
CVE-2020-8162 has been scored as a high severity vulnerability.
How to fix CVE-2020-8162?
To fix CVE-2020-8162, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-8162 being actively exploited in the wild?
It is possible that CVE-2020-8162 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-8162?
CVE-2020-8162 affects n/a https://github.com/rails/rails.
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