Ecosyste.ms: Advisories

An open API service providing security vulnerability metadata for many open source software ecosystems.

Security Advisories: GSA_kwCzR0hTQS05ajRmLWYyNDktcTV3OM4AA_Ws

Default installation of `synthetic-monitoring-agent` exposes sensitive information

Impact

Users running the Synthetic Monitoring agent in their local network are impacted. The authentication token used to communicate with the Synthetic Monitoring API is exposed thru a debugging endpoint. This token can be used to retrieve the Synthetic Monitoring checks created by the user and assigned to the agent identified with that token. The Synthetic Monitoring API will reject connections from already-connected agents, so access to the token does not guarantee access to the checks.

Patches

Fixed version is v0.12.0

Users are advised to rotate the agent tokens.

After upgrading to version v0.12.0 or later, it's recommended that user's of distribution packages (e.g. Debian or RedHat and their derivatives) review the configuration stored in /etc/synthetic-monitoring/synthetic-monitoring-agent.conf, specifically the API_TOKEN variable which has been renamed to SM_AGENT_API_TOKEN.

Workarounds

With all previous versions, it's recommended that users review the agent settings and set the HTTP listening address in a manner that limits the exposure, for example, localhost or a non-routed network, by using the command line parameter -listen-address, e.g. -listen-address localhost:4050.

References

The following changes have been made to address this issue:

For more information

If you have any questions or comments about this advisory:

Permalink: https://github.com/advisories/GHSA-9j4f-f249-q5w8
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS05ajRmLWYyNDktcTV3OM4AA_Ws
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 3 months ago
Updated: 5 days ago


CVSS Score: 7.2
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Identifiers: GHSA-9j4f-f249-q5w8, CVE-2022-46156
References: Repository: https://github.com/grafana/synthetic-monitoring-agent
Blast Radius: 8.0

Affected Packages

go:github.com/grafana/synthetic-monitoring-agent
Dependent packages: 15
Dependent repositories: 13
Downloads:
Affected Version Ranges: < 0.12.0
Fixed in: 0.12.0
All affected versions: 0.0.1, 0.0.2, 0.0.3, 0.0.4, 0.0.5, 0.0.6, 0.0.7, 0.0.8, 0.0.9, 0.0.10, 0.0.11, 0.0.12, 0.0.13, 0.0.14, 0.0.15, 0.0.16, 0.0.17, 0.0.18, 0.0.19, 0.0.20, 0.0.21, 0.0.22, 0.0.23, 0.0.24, 0.0.25, 0.0.26, 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.1.5, 0.2.0, 0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.4.0, 0.4.1, 0.5.0, 0.6.0, 0.6.1, 0.6.2, 0.6.3, 0.7.0, 0.7.1, 0.8.0, 0.8.1, 0.8.2, 0.9.0, 0.9.1, 0.9.2, 0.9.3, 0.9.4, 0.10.0, 0.10.1, 0.10.2, 0.11.0, 0.11.1, 0.11.2
All unaffected versions: 0.12.0, 0.12.1, 0.13.0, 0.14.0, 0.14.1, 0.14.2, 0.14.3, 0.14.4, 0.14.5, 0.15.0, 0.16.0, 0.16.1, 0.16.2, 0.16.3, 0.16.4, 0.16.5, 0.17.0, 0.17.1, 0.17.2, 0.17.3, 0.18.0, 0.18.1, 0.18.2, 0.18.3, 0.19.0, 0.19.1, 0.19.2, 0.19.3, 0.19.4, 0.19.5, 0.19.6, 0.20.1, 0.21.0, 0.22.0, 0.23.0, 0.23.1, 0.23.2, 0.23.3, 0.23.4, 0.24.0, 0.24.1, 0.24.2, 0.24.3, 0.25.0, 0.25.1, 0.25.2, 0.26.0, 0.27.0, 0.28.0, 0.28.1, 0.28.2, 0.29.0, 0.29.1, 0.29.2, 0.29.3, 0.29.4
go:github.com/grafana/synthetic-monitoring-agent/cmd/synthetic-monitoring-agent
Affected Version Ranges: < 0.12.0
Fixed in: 0.12.0