Rapid7 Vulnerability & Exploit Database

Oracle Linux: (CVE-2021-32777) (Multiple Advisories): olcne security update

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Oracle Linux: (CVE-2021-32777) (Multiple Advisories): olcne security update

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
08/24/2021
Created
11/11/2021
Added
11/09/2021
Modified
11/10/2021

Description

Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions when ext-authz extension is sending request headers to the external authorization service it must merge multiple value headers according to the HTTP spec. However, only the last header value is sent. This may allow specifically crafted requests to bypass authorization. Attackers may be able to escalate privileges when using ext-authz extension or back end service that uses multiple value headers for authorization. A specifically constructed request may be delivered by an untrusted downstream peer in the presence of ext-authz extension. Envoy versions 1.19.1, 1.18.4, 1.17.4, 1.16.5 contain fixes to the ext-authz extension to correctly merge multiple request header values, when sending request for authorization.

Solution(s)

  • oracle-linux-upgrade-istio
  • oracle-linux-upgrade-istio-istioctl
  • oracle-linux-upgrade-istio-pilot-agent
  • oracle-linux-upgrade-istio-pilot-discovery
  • oracle-linux-upgrade-kubeadm
  • oracle-linux-upgrade-kubectl
  • oracle-linux-upgrade-kubelet
  • oracle-linux-upgrade-kubernetes
  • oracle-linux-upgrade-olcne
  • oracle-linux-upgrade-olcne-agent
  • oracle-linux-upgrade-olcne-api-server
  • oracle-linux-upgrade-olcne-grafana-chart
  • oracle-linux-upgrade-olcne-istio-chart
  • oracle-linux-upgrade-olcne-nginx
  • oracle-linux-upgrade-olcne-olm-chart
  • oracle-linux-upgrade-olcne-prometheus-chart
  • oracle-linux-upgrade-olcne-utils
  • oracle-linux-upgrade-olcnectl

References

  • ELSA-2021-9525
  • CVE-2021-32777

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
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

;