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CVE-2021-30180— Apache Dubbo RCE on customers via Condition route poisoning (Unsafe YAML unmarshaling)

Quick assessment

Affected
Apache Software Foundation Apache Dubbo
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Dubbo是美国阿帕奇（Apache）基金会的一款基于Java的轻量级RPC（远程过程调用）框架。该产品提供了基于接口的远程呼叫、容错和负载平衡以及自动服务注册和发现等功能。 Apache Dubbo 2.7.9之前存在安全漏洞，该漏洞源于标签路由规则由客户在发出请求以找到正确的端点时使用。在解析这些YAML规则时，Dubbo客户可能支持调用任意构造函数。

AI Predicted 9.8 Difficulty: Easy EPSS 60.28% · P99

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-30180

Vulnerability Information
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Vulnerability Title
Apache Dubbo RCE on customers via Condition route poisoning (Unsafe YAML unmarshaling)
Source: CVE Program / CVE List V5
Vulnerability Description
Apache Dubbo prior to 2.7.9 support Tag routing which will enable a customer to route the request to the right server. These rules are used by the customers when making a request in order to find the right endpoint. When parsing these YAML rules, Dubbo customers may enable calling arbitrary constructors.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Dubbo 环境问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Dubbo是美国阿帕奇（Apache）基金会的一款基于Java的轻量级RPC（远程过程调用）框架。该产品提供了基于接口的远程呼叫、容错和负载平衡以及自动服务注册和发现等功能。 Apache Dubbo 2.7.9之前存在安全漏洞，该漏洞源于标签路由规则由客户在发出请求以找到正确的端点时使用。在解析这些YAML规则时，Dubbo客户可能支持调用任意构造函数。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Dubbo Apache Dubbo 2.7.x ~ 2.7.9 -

II. Public POCs for CVE-2021-30180

# POC Description Source Link Shenlong Link
1 None https://github.com/shoucheng3/apache__dubbo_CVE-2021-30180_2-7-9 POC Details
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III. Intelligence Information for CVE-2021-30180

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Mailing List Discussions for CVE-2021-30180 (1)

Same Patch Batch · Apache Software Foundation · 2021-05-31 · 3 CVEs total

CVE-2021-30179 Apache Dubbo Pre-auth RCE via Java deserialization in the Generic filter
CVE-2021-25640 Open Redirect or SSRF vulnerability usage of parseURL

IV. Related Vulnerabilities

Same product: Apache Dubbo
Same vendor: Apache Software Foundation

V. Comments for CVE-2021-30180

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