cve-2023-27496
Vulnerability from cvelistv5
Published
2023-04-04 19:48
Modified
2025-02-10 21:34
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Summary
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).
References
security-advisories@github.comhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5Exploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/envoyproxy/envoy/security/advisories/GHSA-j79q-2g66-2xv5Exploit, Vendor Advisory
Impacted products
Vendor Product Version
envoyproxy envoy Version: >= 1.25.0, < 1.25.3
Version: >= 1.24.0, < 1.24.4
Version: >= 1.23.0, < 1.23.6
Version: < 1.22.9
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