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.

Remediation

References

https://github.com/ktorio/ktor/pull/1547

https://github.com/ktorio/ktor/security/advisories/GHSA-xrr9-rh8p-433v

Related Vulnerabilities

CVE-2021-32809 Vulnerability in maven package org.webjars.bowergithub.ckeditor:ckeditor4

CVE-2020-7680 Vulnerability in npm package docsify

CVE-2022-1243 Vulnerability in maven package org.webjars.bower:urijs

CVE-2020-10672 Vulnerability in maven package com.fasterxml.jackson.core:jackson-databind

CVE-2021-27515 Vulnerability in npm package url-parse

Severity

High

Classification

CWE-444 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Tags

Patch Third Party Advisory