CVE-2021-36163

Unsafe deserialization in providers using the Hessian protocol

Description

In Apache Dubbo, users may choose to use the Hessian protocol. The Hessian protocol is implemented on top of HTTP and passes the body of a POST request directly to a HessianSkeleton: New HessianSkeleton are created without any configuration of the serialization factory and therefore without applying the dubbo properties for applying allowed or blocked type lists. In addition, the generic service is always exposed and therefore attackers do not need to figure out a valid service/method name pair. This is fixed in 2.7.13, 2.6.10.1

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.28% Top 25%
Vendor Advisory apache.org
Affected: Apache Software Foundation Apache Dubbo
Published at:
Updated at:

References

Link Tags
https://lists.apache.org/thread.html/r8d0adc057bb15a37199502cc366f4b1164c9c536ce28e4defdb428c0%40%3Cdev.dubbo.apache.org%3E vendor advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-36163?
CVE-2021-36163 has been scored as a critical severity vulnerability.
How to fix CVE-2021-36163?
To fix CVE-2021-36163, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-36163 being actively exploited in the wild?
It is possible that CVE-2021-36163 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-36163?
CVE-2021-36163 affects Apache Software Foundation Apache Dubbo.
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