Check Point Advisories

Alibaba Nacos Authentication Bypass (CVE-2021-29442)

Check Point Reference: CPAI-2021-1803
Date Published: 18 Jul 2023
Severity: High
Last Updated: Tuesday 18 July, 2023
Source:
Industry Reference:CVE-2021-29442
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Alibaba Nacos prior to 1.4.1
Vulnerability Description An authentication bypass vulnerability exists in Alibaba Nacos. Successful exploitation of this vulnerability would allow remote attackers to gain unauthorized access into the affected system.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Alibaba Nacos Authentication Bypass (CVE-2021-29442) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  Alibaba Nacos Authentication Bypass (CVE-2021-29442)

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