Vulnerability Details : 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 category: BypassGain privilege
Products affected by CVE-2021-43116
- cpe:2.3:a:alibaba:nacos:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-43116
6.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 94 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-43116
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2021-43116
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-43116
-
https://github.com/alibaba/nacos/issues/7182
Found a login background vulnerability · Issue #7182 · alibaba/nacos · GitHubExploit;Issue Tracking;Third Party Advisory
-
https://github.com/alibaba/nacos/issues/7127
A vulnerability was found that could cause any existing user to log in · Issue #7127 · alibaba/nacos · GitHubExploit;Issue Tracking;Third Party Advisory
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http://packetstormsecurity.com/files/171638/Nacos-2.0.3-Access-Control.html
Nacos 2.0.3 Access Control ≈ Packet Storm
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