The OpenTelemetry Collector module AWS firehose receiver is for ingesting AWS Kinesis Data Firehose delivery stream messages and parsing the records received based on the configured record type. `awsfirehosereceiver` allows unauthenticated remote requests, even when configured to require a key. OpenTelemetry Collector can be configured to receive CloudWatch metrics via an AWS Firehose Stream. Firehose sets the header `X-Amz-Firehose-Access-Key` with an arbitrary configured string. The OpenTelemetry Collector awsfirehosereceiver can optionally be configured to require this key on incoming requests. However, when this is configured it **still accepts incoming requests with no key**. Only OpenTelemetry Collector users configured with the “alpha” `awsfirehosereceiver` module are affected. This module was added in version v0.49.0 of the “Contrib” distribution (or may be included in custom builds). There is a risk of unauthorized users writing metrics. Carefully crafted metrics could hide other malicious activity. There is no risk of exfiltrating data. It’s likely these endpoints will be exposed to the public internet, as Firehose does not support private HTTP endpoints. A fix was introduced in PR #34847 and released with v0.108.0. All users are advised to upgrade. There are no known workarounds for this vulnerability.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - The OpenTelemetry Collector module AWS firehose receiver is for ingesting AWS Kinesis Data Firehose
    delivery stream messages and parsing the records received based on the configured record type.
    `awsfirehosereceiver` allows unauthenticated remote requests, even when configured to require a key.
    OpenTelemetry Collector can be configured to receive CloudWatch metrics via an AWS Firehose Stream.
    Firehose sets the header `X-Amz-Firehose-Access-Key` with an arbitrary configured string. The
    OpenTelemetry Collector awsfirehosereceiver can optionally be configured to require this key on incoming
    requests. However, when this is configured it **still accepts incoming requests with no key**. Only
    OpenTelemetry Collector users configured with the “alpha” `awsfirehosereceiver` module are affected. This
    module was added in version v0.49.0 of the “Contrib” distribution (or may be included in custom builds).
    There is a risk of unauthorized users writing metrics. Carefully crafted metrics could hide other
    malicious activity. There is no risk of exfiltrating data. It’s likely these endpoints will be exposed to
    the public internet, as Firehose does not support private HTTP endpoints. A fix was introduced in PR
    #34847 and released with v0.108.0. All users are advised to upgrade. There are no known workarounds for
    this vulnerability. (CVE-2024-45043)

The OpenTelemetry Collector running on the remote host is prior to 0.108.0. It is, therefore, affected by a timing discrepancy vulnerability, outlined below:

OpenTelemetry Collector module awsfirehosereceiver allows unauthenticated remote requests, even when configured to require a key.

OpenTelemetry Collector can be configured to receive CloudWatch metrics via an AWS Firehose Stream. Firehose sets the header X-Amz-Firehose-Access-Key with an arbitrary configured string. The OpenTelemetry Collector awsfirehosereceiver can optionally be configured to require this key on incoming requests. However, when this is configured it still accepts incoming requests with no key.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
417685	SCA: security update for github.com/open-telemetry/opentelemetry-collector-contrib/receiver/awsfirehosereceiver (GHSA-prf6-xjxh-p698)	Tenable Cloud Security	SCA Checks	medium
417685	SCA: security update for github.com/open-telemetry/opentelemetry-collector-contrib/receiver/awsfirehosereceiver (GHSA-prf6-xjxh-p698)	Tenable Self-Hosted Container Security	SCA Checks	medium
206657	OpenTelemetry Collector < 0.108.0 Authentication Bypass	Nessus	Misc.	medium

Detections

Analytics

CVE-2024-45043

medium

Tenable Plugins

medium

medium

medium