CVE-2020-5207

Request smuggling is possible in Ktor when both chunked TE and content length specified

State
Published
Severity
5.4 Medium
Published
Jan 27, 2020
Updated
Aug 4, 2024
Reserved
Jan 2, 2020

Read the record on cve.org

Description

In Ktor before 1.3.0, request smuggling is possible when running behind a proxy that doesn't handle Content-Length and Transfer-Encoding properly or doesn't handle \n as a headers separator.

Scores

CVSSScoreVectorSource
3.15.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NGitHub_M

Weaknesses

  • CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Affected Products

ProductVersions
KtorKtor.io
  • < 1.3.0Affected

References

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