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Published: 27th October 2021

Version: 2.0.0

Severity: Critical

CVSS Score: 9.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) 


WSO2 API Manager : 2.6.0 , 3.0.0 , 3.1.0 , 3.2.0
WSO2 API Manager Analytics : 2.6.0 
WSO2 Enterprise Integrator : 6.5.0, 6.6.0
WSO2 IS as Key Manager : 5.7.0 , 5.9.0 , 5.10.0  
WSO2 Identity Server : 5.7.0 , 5.8.0 , 5.9.0 , 5.10.0
WSO2 Micro Integrator : 1.0.0


Broken Authentication Vulnerability.


Broken Authentication vulnerability occurs when "StartTLSEnabled" property is set to "true" in the LDAP user store configuration.


This vulnerability allows anyone to login if a valid username is known. However, "StartTLSEnabled" is not set to "true" by default. Therefore, a deployment is not impacted unless that configuration is turned on explicitly.


If the latest version of the affected WSO2 product is not mentioned under the affected product list, you may migrate to the latest version to receive security fixes. Otherwise you may apply the relevant fixes to the product based on the public fix: https://github.com/wso2/carbon-kernel/pull/2835

Note: If you are a WSO2 customer with Support Subscription, please use WSO2 Updates in order to apply the fix.


WSO2 thanks, Thomas BIZOUERNE for responsibly reporting the identified issue and working with us as we addressed it.

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