Security Vulnerability in ActiveStorage S3 Adapter by Rails
CVE-2020-8162

7.5HIGH

Key Information:

Vendor

Rubyonrails

Status
Https://github.com/rails/rails
Vendor
CVE Published:
19 June 2020

What is CVE-2020-8162?

A security vulnerability exists in the ActiveStorage S3 adapter for Rails versions before 5.2.4.2 and 6.0.3.1, enabling attackers to manipulate the Content-Length of direct file uploads. This flaw allows end users to bypass specified upload size restrictions, potentially leading to unwanted server behavior or resource depletion.

Affected Version(s)

https://github.com/rails/rails rails >= 5.2.4.3, rails >= 6.0.3.1

References

https://hackerone.com/reports/789579
x_refsource_MISC
https://groups.google.com/g/rubyonrails-security/c/PjU394...
x_refsource_MISC
https://www.debian.org/security/2020/dsa-4766
vendor-advisoryx_refsource_DEBIAN

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.