CVE-2021-30179

描述

Apache Dubbo prior to 2.6.9 and 2.7.10 by default supports generic calls to arbitrary methods exposed by provider interfaces. These invocations are handled by the GenericFilter which will find the service and method specified in the first arguments of the invocation and use the Java Reflection API to make the final call. The signature for the $invoke or $invokeAsync methods is Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/Object; where the first argument is the name of the method to invoke, the second one is an array with the parameter types for the method being invoked and the third one is an array with the actual call arguments. In addition, the caller also needs to set an RPC attachment specifying that the call is a generic call and how to decode the arguments. The possible values are: - true - raw.return - nativejava - bean - protobuf-json An attacker can control this RPC attachment and set it to nativejava to force the java deserialization of the byte array located in the third argument.

如何修補 CVE-2021-30179

要修補 CVE-2021-30179,請將受影響套件升級到下列已修補版本。

• —升級至 2.6.9 或更新版本
• —升級至 2.7.10 或更新版本

CVE-2021-30179 正在被利用嗎?

低 — EPSS 為 4.2%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• >= 2.5.0, < 2.6.9
• >= 2.5.0, < 2.7.10

CVSS 分數

參考連結(3)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-30179
• WEBlists.apache.org/thread.html/rccbcbdd6593e42ea3a1e8fedd12807cb111375c9c40edb005ef36f67%40%3Cdev.dubbo.apache.org%3E
• WEBlists.apache.org/thread.html/rccbcbdd6593e42ea3a1e8fedd12807cb111375c9c40edb005ef36f67@%3Cdev.dubbo.apache.org%3E