CVE-2020-15136: Improper Authentication

August 6, 2020 (updated November 18, 2021)

In etcd, gateway TLS authentication is only applied to endpoints detected in DNS SRV records. When starting a gateway, TLS authentication will only be attempted on endpoints identified in DNS SRV records for a given domain, which occurs in the discoverEndpoints function. No authentication is performed against endpoints provided in the --endpoints flag. This has been fixed with improved documentation and deprecation of the functionality.

References

nvd.nist.gov/vuln/detail/CVE-2020-15136

Code Behaviors & Features

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