Auth bypass in Ractf Core
CVE-2021-21329
RATCF is an open-source framework for hosting Cyber-Security Capture the Flag events. In affected versions of RATCF users with multi factor authentication enabled are able to log in without a valid token. This is fixed in commit cebb67b.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.016 (75.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.016 · change: +0.002
Affected products
- Ractf Core — versions >c57a4d186bfc586ad3edfe4dcba9f11efbf22f09, < cebb67bd16a8296121201805332365ffccb29638
- Ratcf
Weakness classification (CWE)
References
- github.com/ractf/core/security/advisories/GHSA-fw57-f7mq-9q85 (Patch, Third Party Advisory)
- github.com/ractf/core/commit/c57a4d186bfc586ad3edfe4dcba9f11efbf22f09 (Patch, Third Party Advisory)
- github.com/ractf/core/commit/cebb67bd16a8296121201805332365ffccb29638 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21329?
- CVE-2021-21329 is a high-severity vulnerability in Ractf Core, classified under Improper Authentication. CVSS score: 8.7/10. Published 2021-03-08.
- How severe is CVE-2021-21329?
- High severity. CVSS v3 base score is 8.7 out of 10.