CVE-2022-31055

Improper Access Control in kctf

State: Published
Severity: 7.5 High
Published: Jun 13, 2022
Updated: Apr 23, 2025
Reserved: May 18, 2022

Description

kCTF is a Kubernetes-based infrastructure for capture the flag (CTF) competitions. Prior to version 1.6.0, the kctf cluster set-src-ip-ranges was broken and allowed traffic from any IP. The problem has been patched in v1.6.0. As a workaround, those who want to test challenges privately can mark them as `public: false` and use `kctf chal debug port-forward` to connect.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	GitHub_M

Weaknesses

CWE-284 Improper Access Control

Affected Products

Product	Versions
kctfgoogle	< 1.6.0Affected

References

https://github.com/google/kctf/security/advisories/GHSA-4g2v-6qc6-6jv5
https://github.com/google/kctf/pull/371
https://github.com/google/kctf/commit/8cf050be974fcc2fd8aa136701f9a66f2b2a5202

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