HTTP Request Smuggling in goliath

2021-05-2321:00:00

RubySec

github.com

goliath

request smuggling

http

proxy

content-length

transfer encoding

attacks

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

CVSS3

7.5

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

JSON

goliath through 1.0.6 allows request smuggling attacks where goliath
is used as a backend and a frontend proxy also being vulnerable. It is possible
to conduct HTTP request smuggling attacks by sending the Content-Length header twice.
Furthermore, invalid Transfer Encoding headers were found to be parsed as valid
which could be leveraged for TE:CL smuggling attacks.