CVE-2020-5280

Http4s vulnerability

CVSS

7.6

EPSS

6.8%

EPSS pct

93th

Exploited

No known

http4s before versions 0.18.26, 0.20.20, and 0.21.2 has a local file inclusion vulnerability. This vulnerability applies to all users of org.http4s.server.staticcontent.FileService, org.http4s.server.staticcontent.ResourceService and org.http4s.server.staticcontent.WebjarService. URI normalization is applied incorrectly. Requests whose path info contain ../ or // can expose resources outside of the configured location. This issue is patched in versions 0.18.26, 0.20.20, and 0.21.2. Note that 0.19.0 is a deprecated release and has never been supported.

Affected vendor

Typelevel

Affected product

Http4s

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

Weakness type (CWE)

CWE-23
CWE-22 — Path Traversal

Published

2020-03-25

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, user interaction. Successful exploitation leads to high impact to confidentiality, low impact to integrity.

Its EPSS score of 6.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2020-5280

Confirm whether Typelevel Http4s is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-5280.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-5280

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