CVE-2016-2097

Rails vulnerability

CVSS

5.3

EPSS

4.4%

EPSS pct

90th

Exploited

No known

Directory traversal vulnerability in Action View in Ruby on Rails before 3.2.22.2 and 4.x before 4.1.14.2 allows remote attackers to read arbitrary files by leveraging an application's unrestricted use of the render method and providing a .. (dot dot) in a pathname. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-0752.

Affected vendor

Rubyonrails

Affected product

Rails

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness type (CWE)

CWE-22 — Path Traversal

Published

2016-04-07

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 low impact to confidentiality.

Its EPSS score of 4.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2016-2097

Confirm whether Rubyonrails Rails is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2016-2097.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-2097

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-2097 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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