CVE-2024-42368 Information

Description

OpenTelemetry also known as OTel is a vendor-neutral open source Observability framework for instrumenting generating collecting and exporting telemetry data such as traces metrics and logs. The bearertokenauth extension’s server authenticator performs a simple non-constant time string comparison of the received & configured bearer tokens. This impacts anyone using the bearertokenauth server authenticator. Malicious clients with network access to the collector may perform a timing attack against a collector with this authenticator to guess the configured token by iteratively sending tokens and comparing the response time. This would allow an attacker to introduce fabricated or bad data into the collector’s telemetry pipeline. The observable timing vulnerability was fixed by using constant-time comparison in 0.107.0

Reference

https://github.com/open-telemetry/opentelemetry-collector-contrib/security/advisories/GHSA-rfxf-mf63-cpqv https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/34516 https://github.com/open-telemetry/opentelemetry-collector-contrib/commit/c9bd3eff0bb357d9c812a0d8defd3b09db95699a