CVE-2023-45142
Vulnerability from cvelistv5
Published
2023-10-12 16:33
Modified
2024-08-02 20:14
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
OpenTelemetry-Go Contrib is a collection of third-party packages for OpenTelemetry-Go. A handler wrapper out of the box adds labels `http.user_agent` and `http.method` that have unbound cardinality. It leads to the server's potential memory exhaustion when many malicious requests are sent to it. HTTP header User-Agent or HTTP method for requests can be easily set by an attacker to be random and long. The library internally uses `httpconv.ServerRequest` that records every value for HTTP `method` and `User-Agent`. In order to be affected, a program has to use the `otelhttp.NewHandler` wrapper and not filter any unknown HTTP methods or User agents on the level of CDN, LB, previous middleware, etc. Version 0.44.0 fixed this issue when the values collected for attribute `http.request.method` were changed to be restricted to a set of well-known values and other high cardinality attributes were removed. As a workaround to stop being affected, `otelhttp.WithFilter()` can be used, but it requires manual careful configuration to not log certain requests entirely. For convenience and safe usage of this library, it should by default mark with the label `unknown` non-standard HTTP methods and User agents to show that such requests were made but do not increase cardinality. In case someone wants to stay with the current behavior, library API should allow to enable it.
References
security-advisories@github.comhttps://github.com/advisories/GHSA-cg3q-j54f-5p7pThird Party Advisory
security-advisories@github.comhttps://github.com/open-telemetry/opentelemetry-go-contrib/blob/5f7e6ad5a49b45df45f61a1deb29d7f1158032df/instrumentation/net/http/otelhttp/handler.go#L63-L65Product
security-advisories@github.comhttps://github.com/open-telemetry/opentelemetry-go-contrib/pull/4277Issue Tracking
security-advisories@github.comhttps://github.com/open-telemetry/opentelemetry-go-contrib/releases/tag/v1.19.0Release Notes
security-advisories@github.comhttps://github.com/open-telemetry/opentelemetry-go-contrib/security/advisories/GHSA-5r5m-65gx-7vrhVendor Advisory
security-advisories@github.comhttps://github.com/open-telemetry/opentelemetry-go-contrib/security/advisories/GHSA-rcjv-mgp8-qvmrVendor Advisory
security-advisories@github.comhttps://github.com/open-telemetry/opentelemetry-go/blob/38e1b499c3da3107694ad2660b3888eee9c8b896/semconv/internal/v2/http.go#L223Product
security-advisories@github.comhttps://github.com/open-telemetry/opentelemetry-go/blob/v1.12.0/semconv/internal/v2/http.go#L159Product
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2UTRJ54INZG3OC2FTAN6AFB2RYNY2GAD/
af854a3a-2127-422b-91ae-364da2661108https://github.com/advisories/GHSA-cg3q-j54f-5p7pThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/open-telemetry/opentelemetry-go-contrib/blob/5f7e6ad5a49b45df45f61a1deb29d7f1158032df/instrumentation/net/http/otelhttp/handler.go#L63-L65Product
af854a3a-2127-422b-91ae-364da2661108https://github.com/open-telemetry/opentelemetry-go-contrib/pull/4277Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://github.com/open-telemetry/opentelemetry-go-contrib/releases/tag/v1.19.0Release Notes
af854a3a-2127-422b-91ae-364da2661108https://github.com/open-telemetry/opentelemetry-go-contrib/security/advisories/GHSA-5r5m-65gx-7vrhVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/open-telemetry/opentelemetry-go-contrib/security/advisories/GHSA-rcjv-mgp8-qvmrVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/open-telemetry/opentelemetry-go/blob/38e1b499c3da3107694ad2660b3888eee9c8b896/semconv/internal/v2/http.go#L223Product
af854a3a-2127-422b-91ae-364da2661108https://github.com/open-telemetry/opentelemetry-go/blob/v1.12.0/semconv/internal/v2/http.go#L159Product
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2UTRJ54INZG3OC2FTAN6AFB2RYNY2GAD/
Impacted products
Vendor Product Version
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  }
}


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  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.