Unsafe deserialization in providers using the Hessian protocol
CVE-2021-36163

9.8CRITICAL

Key Information:

Vendor

Apache
Status
Apache Dubbo
Vendor
CVE Published:
7 September 2021

What is CVE-2021-36163?

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

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Affected Version(s)

Apache Dubbo Apache Dubbo 2.7.x <= 2.7.12

Apache Dubbo Apache Dubbo 2.6.x <= 2.6.10

References

https://lists.apache.org/thread.html/r8d0adc057bb15a37199...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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