🛡️ CVE-2021-43116 — nacos-client

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-287 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Use of Hard-coded Credentials in Nacos

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2021-43116 is classified as CWE-287: Improper Authentication. The identity of the caller is not established correctly, so an attacker can act as another user.

Affected software

CVE-2021-43116 is recorded against 1 package.

  • com.alibaba.nacos:nacos-client

Timeline and source

Published on 6 July 2022 and last revised on 8 November 2023. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Package)
packetstormsecurity.com (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-287
Public Exploit ✅ No
Source OSV
Published 2022-07-06
Updated 2026-08-12
Modified 2023-11-08
Fix URL N/A

Affected Packages

Software From version Fixed in
com.alibaba.nacos:nacos-client — —

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