Bug 2161240 (CVE-2023-22497) - CVE-2023-22497 netdata: Netdata Streaming Authentication Bypass
Summary: CVE-2023-22497 netdata: Netdata Streaming Authentication Bypass
Alias: CVE-2023-22497
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 2161241 2161242
TreeView+ depends on / blocked
Reported: 2023-01-16 11:34 UTC by Avinash Hanwate
Modified: 2023-01-20 19:52 UTC (History)
0 users

Fixed In Version:
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Last Closed: 2023-01-20 19:52:12 UTC

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Description Avinash Hanwate 2023-01-16 11:34:52 UTC
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.


Comment 1 Avinash Hanwate 2023-01-16 11:35:16 UTC
Created netdata tracking bugs for this issue:

Affects: epel-all [bug 2161242]
Affects: fedora-all [bug 2161241]

Comment 2 Product Security DevOps Team 2023-01-20 19:52:10 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.

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