Auth bypass in Nodebb
CVE-2020-15149
NodeBB before version 1.14.3 has a bug introduced in version 1.12.2 in the validation logic that makes it possible to change the password of any user on a running NodeBB forum by sending a specially crafted socket.io call to the server. This could lead to a privilege escalation event due via an account takeover. As a workaround you may cherry-pick the following commit from the project's repository to your running instance of NodeBB: 16cee1b03ba3eee177834a1fdac4aa8a12b39d2a. This is fixed in version 1.14.3.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.024 (83.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Nodebb — versions >=12.2.2, < 1.14.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/NodeBB/NodeBB/security/advisories/GHSA-hr66-c8pg-5mg7 (Patch, Third Party Advisory)
- github.com/NodeBB/NodeBB/commit/c2477d9d5ffc43e5ffeb537ea2ceb4ce9592aa39 (Patch, Third Party Advisory)
- zeroauth.ltd/blog/2020/08/20/proof-of-concept-exploit-for-cve-2020-15149-nodebb… (Third Party Advisory)
- packetstormsecurity.com/files/159560/NodeBB-Forum-1.14.2-Account-Takeover.html (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-15149?
- CVE-2020-15149 is a critical-severity vulnerability in Nodebb, classified under Improper Privilege Management. CVSS score: 9.9/10. Published 2020-08-20.
- How severe is CVE-2020-15149?
- Critical severity. CVSS v3 base score is 9.9 out of 10.
- Is CVE-2020-15149 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.