Dubbo
CVE-2021-36163
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1Blast Radius
ecosystem impact- 18 maven packages depend on org.apache.dubbo:dubbo (16 direct, 2 indirect)
Ecosystem-wide dependent count for version 2.7.0.
DescriptionNVD
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
AnalysisAI
In Apache Dubbo, users may choose to use the Hessian protocol. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. 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 Affected products include: Apache Dubbo.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.
Deserialization of Untrusted Data vulnerability in Apache Dubbo.This issue only affects Apache Dubbo 3.1.5. Rated critic
A deserialization vulnerability existed when decode a malicious package.1.0 through 3.1.10, from 3.2.0 through 3.2.4. Ra
A deserialization vulnerability existed when dubbo generic invoke, which could lead to malicious code execution.7.x vers
A deserialization vulnerability existed in dubbo hessian-lite 3.2.12 and its earlier versions, which could lead to malic
The Dubbo Provider will check the incoming request and the corresponding serialization type of this request meet the con
Some component in Dubbo will try to print the formated string of the input arguments, which will possibly cause RCE for
Apache Dubbo prior to 2.6.9 and 2.7.9 supports Script routing which will enable a customer to route the request to the r
Apache Dubbo prior to 2.7.9 support Tag routing which will enable a customer to route the request to the right server. R
Apache Dubbo prior to 2.6.9 and 2.7.9 by default supports generic calls to arbitrary methods exposed by provider interfa
Each Apache Dubbo server will set a serialization id to tell the clients which serialization protocol it is working on.
This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. Rated critical severity (CVSS 9.8), this v
Apache Dubbo supports various rules to support configuration override or traffic routing (called routing in Dubbo). Rate
Same weakness CWE-502 – Deserialization of Untrusted Data
View allSame technique Deserialization
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External POC / Exploit Code
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