Low severity · published Feb 10, 2021
CVE-2021-21296
Fleet is an open source osquery manager
2.7
CVSS
1.9%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FL
Fleet · Fleetdm
before 3.7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21296
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21296
Patch
https://github.com/fleetdm/fleet/commit/f68f4238e83b45b2164e4ed05df14af0f06eaf40
Third Party Advisory
https://github.com/fleetdm/fleet/security/advisories/GHSA-xwh8-9p3f-3x45
Product
https://www.npmjs.com/package/fleetctl
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