Access Control Vulnerability in Nacos 2.0.3 by Alibaba
CVE-2021-43116

8.8HIGH

Key Information:

Vendor

Alibaba

Status
Nacos
Vendor
CVE Published:
5 July 2022

What is CVE-2021-43116?

An access control vulnerability in Nacos version 2.0.3 allows attackers to manipulate login processes by capturing and altering authentication packets. When a user enters their username and password on the access prompt page, an attacker can intercept this data. By modifying the returned packets, the attacker can gain unauthorized access and log in as a legitimate user, compromising system security and integrity.

References

https://github.com/alibaba/nacos/issues/7127
https://github.com/alibaba/nacos/issues/7182
http://packetstormsecurity.com/files/171638/Nacos-2.0.3-A...

EPSS Score

7% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.