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Cloud AdmissionController component: DoS by exhausting memory of node with http request containing large body

Moderate
kevin-wangzefeng published GHSA-w52j-3457-q9wr Jul 11, 2022

Package

gomod KubeEdge (Go)

Affected versions

<=1.11.0, 1.10.1, 1.9.3

Patched versions

1.11.1, 1.10.2, 1.9.4

Description

Impact

Several endpoints including /devicemodels, /rules, /ruleendpoints, /offlinemigration in the Cloud Admissioncontroller may be susceptible to a DoS attack if an HTTP request containing a very large Body is sent to it.
Only an authenticated user can cause this issue. It will be affected when users deploy a Cloud Admissioncontroller. The consequence of the exhaustion is that the Cloud Admissioncontroller will be in denial of service.

Patches

This bug has been fixed in Kubeedge 1.11.1, 1.10.2, 1.9.4. Users should update to these versions to resolve the issue.

Workarounds

At the time of writing, no workaround exists.

References

NA

Credits

Thanks David Korczynski and Adam Korczynski of ADA Logics for responsibly disclosing this issue in accordance with the kubeedge security policy during a security audit sponsored by CNCF and facilitated by OSTIF.

For more information

If you have any questions or comments about this advisory:

Severity

Moderate
4.5
/ 10

CVSS base metrics

Attack vector
Adjacent
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVE ID

CVE-2022-31074

Weaknesses

No CWEs

Credits