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Amazon Linux AMI 2: CVE-2023-27496: Security patch for ecs-service-connect-agent (ALASECS-2023-003)

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Amazon Linux AMI 2: CVE-2023-27496: Security patch for ecs-service-connect-agent (ALASECS-2023-003)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/04/2023
Created
07/14/2023
Added
07/14/2023
Modified
11/08/2023

Description

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the OAuth filter assumes that a `state` query param is present on any response that looks like an OAuth redirect response. Sending it a request with the URI path equivalent to the redirect path, without the `state` parameter, will lead to abnormal termination of Envoy process. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 contain a patch. The issue can also be mitigated by locking down OAuth traffic, disabling the filter, or by filtering traffic before it reaches the OAuth filter (e.g. via a lua script).

Solution(s)

  • amazon-linux-ami-2-upgrade-ecs-service-connect-agent
  • amazon-linux-ami-2-upgrade-ecs-service-connect-agent-debuginfo

References

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