Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2021-33197: ReverseProxy forwards connection headers if first one is empty (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Red Hat: CVE-2021-33197: ReverseProxy forwards connection headers if first one is empty (Multiple Advisories)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
08/02/2021
Created
11/11/2021
Added
11/10/2021
Modified
09/03/2024

Description

In Go before 1.15.13 and 1.16.x before 1.16.5, some configurations of ReverseProxy (from net/http/httputil) result in a situation where an attacker is able to drop arbitrary headers.

Solution(s)

  • redhat-upgrade-buildah
  • redhat-upgrade-buildah-debuginfo
  • redhat-upgrade-buildah-debugsource
  • redhat-upgrade-buildah-tests
  • redhat-upgrade-buildah-tests-debuginfo
  • redhat-upgrade-delve
  • redhat-upgrade-delve-debuginfo
  • redhat-upgrade-delve-debugsource
  • redhat-upgrade-go-toolset
  • redhat-upgrade-golang
  • redhat-upgrade-golang-bin
  • redhat-upgrade-golang-docs
  • redhat-upgrade-golang-misc
  • redhat-upgrade-golang-race
  • redhat-upgrade-golang-src
  • redhat-upgrade-golang-tests
  • redhat-upgrade-grafana
  • redhat-upgrade-grafana-debuginfo
  • redhat-upgrade-podman
  • redhat-upgrade-podman-catatonit-debuginfo
  • redhat-upgrade-podman-debuginfo
  • redhat-upgrade-podman-debugsource
  • redhat-upgrade-podman-docker
  • redhat-upgrade-podman-gvproxy
  • redhat-upgrade-podman-gvproxy-debuginfo
  • redhat-upgrade-podman-plugins
  • redhat-upgrade-podman-plugins-debuginfo
  • redhat-upgrade-podman-remote
  • redhat-upgrade-podman-remote-debuginfo
  • redhat-upgrade-podman-tests

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;