Netdata is an open source option for real-time infrastructure monitoring and troubleshooting. Each Netdata Agent has an automatically generated MACHINE GUID. It is generated when the agent first starts and it is saved to disk, so that it will persist across restarts and reboots. Anyone who has access to a Netdata Agent has access to its MACHINE_GUID. Streaming is a feature that allows a Netdata Agent to act as parent for other Netdata Agents (children), offloading children from various functions (increased data retention, ML, health monitoring, etc) that can now be handled by the parent Agent. Configuration is done via `stream.conf`. On the parent side, users configure in `stream.conf` an API key (any random UUID can do) to provide common configuration for all children using this API key and per MACHINE GUID configuration to customize the configuration for each child. The way this was implemented, allowed an attacker to use a valid MACHINE_GUID as an API key. This affects all users who expose their Netdata Agents (children) to non-trusted users and they also expose to the same users Netdata Agent parents that aggregate data from all these children. The problem has been fixed in: Netdata agent v1.37 (stable) and Netdata agent v1.36.0-409 (nightly). As a workaround, do not enable streaming by default. If you have previously enabled this, it can be disabled. Limiting access to the port on the recipient Agent to trusted child connections may mitigate the impact of this vulnerability.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Netdata is an open source option for real-time infrastructure monitoring and troubleshooting. Each Netdata     Agent has an automatically generated MACHINE GUID. It is generated when the agent first starts and it is     saved to disk, so that it will persist across restarts and reboots. Anyone who has access to a Netdata     Agent has access to its MACHINE_GUID. Streaming is a feature that allows a Netdata Agent to act as parent     for other Netdata Agents (children), offloading children from various functions (increased data retention,     ML, health monitoring, etc) that can now be handled by the parent Agent. Configuration is done via     `stream.conf`. On the parent side, users configure in `stream.conf` an API key (any random UUID can do) to     provide common configuration for all children using this API key and per MACHINE GUID configuration to     customize the configuration for each child. The way this was implemented, allowed an attacker to use a     valid MACHINE_GUID as an API key. This affects all users who expose their Netdata Agents (children) to     non-trusted users and they also expose to the same users Netdata Agent parents that aggregate data from     all these children. The problem has been fixed in: Netdata agent v1.37 (stable) and Netdata agent     v1.36.0-409 (nightly). As a workaround, do not enable streaming by default. If you have previously enabled     this, it can be disabled. Limiting access to the port on the recipient Agent to trusted child connections     may mitigate the impact of this vulnerability. (CVE-2023-22497)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7250-1 advisory.

    It was discovered that Netdata incorrectly handled parsing JSON input, which could lead to a JSON     injection. An attacker could possibly use this issue to execute arbitrary code. This issue only affected

    Ubuntu 18.04 LTS. (CVE-2018-18836)

    It was discovered that Netdata incorrectly handled parsing HTTP headers, which could lead to a HTTP header     injection. An attacker could possibly use this issue to cause a denial of service or leak sensitive     information. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-18837)

    It was discovered that Netdata incorrectly handled parsing URLs, which could lead to a log injection. An     attacker could possibly use this issue to consume system resources, resulting in a denial of service. This     issue only affected Ubuntu 18.04 LTS. (CVE-2018-18838)

    It was discovered Netdata improperly authenticated API keys. An attacker could possibly use this issue to     leak sensitive information or execute arbitrary code. This issue only affected Ubuntu 20.04 LTS and

    Ubuntu 22.04 LTS. (CVE-2023-22497)

    It was discovered Fluent Bit, vendored in Netdata, incorrectly handled parsing HTTP payloads. An attacker     could possibly use this issue to disrupt logging. This issue only affected Ubuntu 24.10. (CVE-2024-23722)

    It was discovered that WebAssembly Micro Runtime, vendored in Netdata, incorrectly handled memory. An     attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu     24.10. (CVE-2024-34250, CVE-2024-34251)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

ID	Name	Product	Family	Severity
226257	Linux Distros Unpatched Vulnerability : CVE-2023-22497	Nessus	Misc.	critical
214875	Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.10 : Netdata vulnerabilities (USN-7250-1)	Nessus	Ubuntu Local Security Checks	critical

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CVE-2023-22497

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