THREATPORT/VULNERABILITY/CVE-2020-8162
HIGH SEVERITY

CVE-2020-8162

Rails vulnerability

CVSS
7.5
EPSS
3.1%
EPSS pct
86th
Exploited
No known
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.
Affected vendor
Rubyonrails
Affected product
Rails
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness type (CWE)
Published
2020-06-19

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to integrity.

Its EPSS score of 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2020-8162

  • Confirm whether Rubyonrails Rails is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-8162.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-8162

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-8162 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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