Hi
Severity: medium

Vendor:
The Dubbo Project Team

Versions Affected:
Dubbo 2.7.0 to 2.7.12
Dubbo 3.0.0 to 3.0.1

Description:
The Dubbo Provider will check the incoming request and the corresponding 
serialization type of this request meet the configuration set by the server. 
But there's an exception that the attacker can use to skip the security check 
(when enabled) and reaching a deserialization operation with native java 
serialization.

The latest version fixed this issue by quickly fail when any unrecognized 
request is found.

Solution:
Upgrade to 2.7.13 for users using 2.7.x
Upgrade to 3.0.2 for users using 3.0.x

Credit:
This issue was first reported by Alvaro Munoz from the Github Security Lab

Jun

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