What is the CVSS score of CVE-2021-21296?

CVE-2021-21296 has a CVSS 3.1 base score of 2.7 (Low). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L. EPSS exploitation probability: 1.9%.

Is there a patch available for CVE-2021-21296?

Yes, a patch is available for CVE-2021-21296. Update the affected software to the latest version immediately.

Fleet CVE-2021-21296

LOW

Uncontrolled Resource Consumption (CWE-400)

2021-02-10 security-advisories@github.com

Privilege Escalation RCE Denial Of Service Information Disclosure Fleet Fleetdm

2.7

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

2.7 LOW

AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

CVE Published

Feb 10, 2021 - 20:15 nvd

LOW 2.7

DescriptionNVD

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.

AnalysisAI

Fleet is an open source osquery manager. Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity. This Uncontrolled Resource Consumption vulnerability could allow attackers to cause denial of service by exhausting system resources.

Technical ContextAI

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. 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. Affected products include: Fleetdm Fleet. Version information: version 3.7.0.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.