VULNERABILITY

FreeBSD: VID-B10D1AFA-6087-11ED-8C5E-641C67A117D8: varnish -- Request Smuggling Vulnerability

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FreeBSD: VID-B10D1AFA-6087-11ED-8C5E-641C67A117D8: varnish -- Request Smuggling Vulnerability

Severity
9
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:N)
Published
11/08/2022
Created
11/15/2022
Added
11/10/2022
Modified
02/19/2025

Description

Varnish Cache Project reports:

A request smuggling attack can be performed on Varnish Cache servers by

requesting that certain headers are made hop-by-hop, preventing the

Varnish Cache servers from forwarding critical headers to the backend.

Among the headers that can be filtered this way are both Content-Length

and Host, making it possible for an attacker to both break the HTTP/1

protocol framing, and bypass request to host routing in VCL.

Solution(s)

  • freebsd-upgrade-package-varnish7

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