CVE-2021-21296
In Fleet before version 3.7.0 a malicious actor with a valid node key can send a badly formatted request that causes the Fleet server to exit, resulting in denial of service.
Does this matter?
Lower severity and a low EPSS score (1.94%). Track it; it rarely justifies an emergency change on its own.
Description
Fleet is an open source osquery manager. In Fleet before version 3.7.0 a malicious actor with a valid node key can send a badly formatted request that causes the Fleet server to exit, resulting in denial of service. This is possible only while a live query is currently ongoing. We believe the impact of this vulnerability to be low given the requirement that the actor has a valid node key. There is no information disclosure, privilege escalation, or code execution. The issue is fixed in Fleet 3.7.0.
- CVSS 3.1
- 2.7 LOWCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 1.94% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- fleetdm/fleet
- Source
- security-advisories@github.com
References
- https://github.com/fleetdm/fleet/commit/f68f4238e83b45b2164e4ed05df14af0f06eaf40Patch, Third Party Advisory
- https://github.com/fleetdm/fleet/security/advisories/GHSA-xwh8-9p3f-3x45Third Party Advisory
- https://www.npmjs.com/package/fleetctlProduct, Third Party Advisory
- https://github.com/fleetdm/fleet/commit/f68f4238e83b45b2164e4ed05df14af0f06eaf40Patch, Third Party Advisory
- https://github.com/fleetdm/fleet/security/advisories/GHSA-xwh8-9p3f-3x45Third Party Advisory
- https://www.npmjs.com/package/fleetctlProduct, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.