CVE-2021-29441 - Vulnerability Details - OpenCVE

Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.9419.

Key SSVC decision points have not yet been added.

Vendors	Products
Alibaba	Nacos

Configuration 1 [-]

cpe:2.3:a:alibaba:nacos:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
Github GHSA	GHSA-36hp-jr8h-556f	Authentication Bypass

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

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

History

No history.

MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2021-04-27T20:20:20

Updated: 2024-08-03T22:02:51.975Z

Reserved: 2021-03-30T00:00:00

Link: CVE-2021-29441

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-04-27T21:15:07.993

Modified: 2024-11-21T06:01:06.293

Link: CVE-2021-29441

Redhat

No data.

OpenCVE Enrichment

No data.

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