Vulnerability in Google Kctf
CVE-2022-31055
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (47.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Google Kctf — versions < 1.6.0
Weakness classification (CWE)
References
- github.com/google/kctf/security/advisories/GHSA-4g2v-6qc6-6jv5 (Third Party Advisory)
- github.com/google/kctf/pull/371 (Patch, Third Party Advisory)
- github.com/google/kctf/commit/8cf050be974fcc2fd8aa136701f9a66f2b2a5202 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-31055?
- CVE-2022-31055 is a high-severity vulnerability in Google Kctf, classified under Improper Access Control. CVSS score: 7.5/10. Published 2022-06-13.
- How severe is CVE-2022-31055?
- High severity. CVSS v3 base score is 7.5 out of 10.