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[email protected]CVE-2020-5207

HistoryJan 27, 2020 - 8:15 p.m.

CVE-2020-5207

2020-01-2720:15:10

CWE-444

[email protected]

web.nvd.nist.gov

ktor

request smuggling

proxy

content-length

transfer-encoding

cve-2020-5207

nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

31.1%

JSON

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.

Affected configurations

Vulners

NVD

Node

ktor.ioktorRange<1.3.0

CPENameOperatorVersion
jetbrains:ktorjetbrains ktorlt1.3.0

CPE	Name	Operator	Version
jetbrains:ktor	jetbrains ktor	lt	1.3.0

CNA Affected

[
  {
    "product": "Ktor",
    "vendor": "Ktor.io",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.3.0"
      }
    ]
  }
]