CVE-2021-29441 Scanner

Nacos is a platform specifically designed for dynamic service discovery, configuration, and service management. It is mainly used by developers and system administrators to manage distributed systems and microservices. The platform offers a comprehensive set of features such as service registration, service discovery, dynamic configuration, and DNS resolution. Nacos is compatible with popular cloud platforms like Kubernetes and Docker and provides multi-tenancy support for managing multiple environments like development, staging, and production.

The CVE-2021-29441 vulnerability detected in Nacos before version 1.4.1 is a major security concern for all users. The problem lies with the AuthFilter servlet filter, designed to enforce authentication when configured to use authentication (-Dnacos.core.auth.enabled=true). The filter has a backdoor that Nacos servers can use to bypass it, thereby allowing any user to carry out any administrative task on the Nacos server. The vulnerability is so critical that it can permit remote attackers to carry out a wide range of attacks and compromise sensitive data and resources.

Exploiting this vulnerability can result in a series of consequences, ranging from data theft to hijacking of critical network systems. Attackers can exploit this vulnerability to bypass authentication checks and gain admin access to the Nacos servers. Once they have admin access, they can modify configurations, steal data, inject malware into the system, and even shut down critical production systems. Furthermore, the vulnerability can easily be exploited by attackers to execute remote code execution attacks that can compromise the entire network infrastructure and cause it to fail.

In conclusion, securityforeveryone.com provides an excellent platform for learning about vulnerabilities in digital assets. By leveraging their pro features, users can easily and quickly detect any known vulnerability in their network systems and take steps to secure them promptly. Everyone must take this opportunity to protect their digital assets by staying up-to-date with the latest vulnerabilities and securing their network systems with caution.

REFERENCES

• https://github.com/advisories/GHSA-36hp-jr8h-556f
• https://github.com/alibaba/nacos/issues/4701
• https://github.com/alibaba/nacos/pull/4703