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FreeBSD : varnish -- Request Smuggling Vulnerability (b10d1afa-6087-11ed-8c5e-641c67a117d8)

high Nessus Plugin ID 167244

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the b10d1afa-6087-11ed-8c5e-641c67a117d8 advisory.

 - 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. (b10d1afa-6087-11ed-8c5e-641c67a117d8)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://varnish-cache.org/security/VSV00010.html

http://www.nessus.org/u?829cd4bb

Plugin Details

Severity: High

ID: 167244

File Name: freebsd_pkg_b10d1afa608711ed8c5e641c67a117d8.nasl

Version: 1.2

Type: local

Published: 11/10/2022

Updated: 11/10/2022

Supported Sensors: Nessus

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:varnish7, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 11/9/2022

Vulnerability Publication Date: 11/8/2022