CVE-2020-5207 Information

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.

CVSS Vector

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

Reference

https://github.com/ktorio/ktor/pull/1547 https://github.com/ktorio/ktor/security/advisories/GHSA-xrr9-rh8p-433v

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5