PT-2022-20493 · Kctf · Kctf

Sroettger · Published 2022-06-13 · Updated 2023-07-21 · CVE-2022-31055

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions kCTF versions prior to 1.6.0

Description The kCTF cluster set-src-ip-ranges feature was broken, allowing traffic from any IP. This issue has been patched in version 1.6.0. As a workaround for private challenge testing, users can mark challenges as public: false and use kctf chal debug port-forward to connect.

Recommendations For versions prior to 1.6.0, update to version 1.6.0 to resolve the issue. As a temporary workaround, consider marking challenges as public: false and using kctf chal debug port-forward to connect for private testing.

Exploit

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2022-31055

GHSA-4G2V-6QC6-6JV5

Affected Products

Kctf

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31055.json · Exploit
• https://github.com/google/kctf/commit/8cf050be974fcc2fd8aa136701f9a66f2b2a5202 · Patch
• https://github.com/google/kctf/pull/371 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-31055 · Security Note
• https://osv.dev/vulnerability/CVE-2022-31055 · Vendor Advisory
• https://github.com/google/kctf/security/advisories/GHSA-4g2v-6qc6-6jv5 · Note
• https://t.me/cibsecurity/44319 · Telegram Post