Auth bypass in Chat Server Project
CVE-2022-31013
Chat Server is the chat server for Vartalap, an open-source messaging application. Versions 2.3.2 until 2.6.0 suffer from a bug in validating the access token, resulting in authentication bypass. The function `this.authProvider.verifyAccessKey` is an async function, as the code is not using `await` to wait for the verification result. Every time the function responds back with success, along with an unhandled exception if the token is invalid. A patch is available in version 2.6.0.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.015 (73.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.015 · change: +0.000
Affected products
- Chat Server Project
- Ramank775 Chat-Server — versions >= 2.3.2, < 2.6.0
Weakness classification (CWE)
References
- github.com/ramank775/chat-server/security/advisories/GHSA-xx4j-qqpp-v277 (Patch, Third Party Advisory)
- github.com/ramank775/chat-server/discussions/78 (Third Party Advisory, Issue Tracking)
- github.com/ramank775/chat-server/releases/tag/v2.6.0 (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2022-31013?
- CVE-2022-31013 is a critical-severity vulnerability in Chat Server Project, classified under Improper Authentication. CVSS score: 9.1/10. Published 2022-05-31.
- How severe is CVE-2022-31013?
- Critical severity. CVSS v3 base score is 9.1 out of 10.