What is CVE-2021-43116?

CVE-2021-43116 is a high-severity vulnerability in Alibaba Nacos, classified under Improper Authentication. CVSS score: 8.8/10. Published 2022-07-05.

How severe is CVE-2021-43116?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Alibaba Nacos

CVE-2021-43116

An Access Control vulnerability exists in Nacos 2.0.3 in the access prompt page; enter username and password, click on login to capture packets and then change the returned package, which lets a malicious user login.

Vulnerability class: Broken Authentication

EPSS: 0.072 (93.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Alibaba Nacos
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@mitre.org (Exploit, Third Party Advisory, Issue Tracking)
cve@mitre.org (Exploit, Third Party Advisory, Issue Tracking)
cve@mitre.org

Frequently asked questions

What is CVE-2021-43116?: CVE-2021-43116 is a high-severity vulnerability in Alibaba Nacos, classified under Improper Authentication. CVSS score: 8.8/10. Published 2022-07-05.
How severe is CVE-2021-43116?: High severity. CVSS v3 base score is 8.8 out of 10.