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

2021-09-0709:25:11

apache

www.cve.org

cve-2021-36163

apache dubbo

hessian protocol

http

post request

hessianskeleton

serialization factory

dubbo properties

generic service

attackers

security vulnerability

fix

AI Score

9.5

Confidence

High

EPSS

0.006

Percentile

78.3%

JSON

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

CNA Affected

[
  {
    "product": "Apache Dubbo",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "lessThanOrEqual": "2.7.12",
        "status": "affected",
        "version": "Apache Dubbo 2.7.x",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "2.6.10",
        "status": "affected",
        "version": "Apache Dubbo 2.6.x",
        "versionType": "custom"
      }
    ]
  }
]