CVE-2020-5207 – io.ktor:ktor-server-cio

Package

Manager: maven
Name: io.ktor:ktor-server-cio
Vulnerable Version: >=0 <1.3.0

Severity

Level: Low

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: 4e-05 pctl0.0016

Details

Request smuggling is possible when both chunked TE and content length specified ### Impact Request smuggling is possible when running behind a proxy that doesn't handle Content-Length and Transfer-Encoding properly or doesn't handle alone \n as a headers separator. ### Patches https://github.com/ktorio/ktor/pull/1547 ### Workarounds None except migrating to a better proxy. ### References https://portswigger.net/web-security/request-smuggling https://tools.ietf.org/html/rfc7230#section-9.5

Metadata

Created: 2020-01-27T19:28:40Z
Modified: 2021-01-08T20:32:37Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/01/GHSA-xrr9-rh8p-433v/GHSA-xrr9-rh8p-433v.json
CWE IDs: ["CWE-444"]
Alternative ID: GHSA-xrr9-rh8p-433v
Finding: F110
Auto approve: 1