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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTc0bWctNnhxeC0ydnJx

Deserialization exploitation in Apache Dubbo

A deserialization vulnerability existed in dubbo 2.7.5 and its earlier versions, which could lead to malicious code execution. Most Dubbo users use Hessian2 as the default serialization/deserialization protool, during Hessian2 deserializing the HashMap object, some functions in the classes stored in HashMap will be executed after a series of program calls, however, those special functions may cause remote command execution. For example, the hashCode() function of the EqualsBean class in rome-1.7.0.jar will cause the remotely load malicious classes and execute malicious code by constructing a malicious request. This issue was fixed in Apache Dubbo 2.6.9 and 2.7.8.

Permalink: https://github.com/advisories/GHSA-74mg-6xqx-2vrq
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTc0bWctNnhxeC0ydnJx
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 1 year ago
Updated: 8 months ago

CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-74mg-6xqx-2vrq, CVE-2020-11995
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-11995
• https://github.com/apache/dubbo/commit/d2e9baf380108950c48e0ab700ccdbf11dd753ab
• https://lists.apache.org/thread.html/r5b2df4ef479209dc4ced457b3d58a887763b60b9354c3dc148b2eb5b%40%3Cdev.dubbo.apache.org%3E
• https://github.com/advisories/GHSA-74mg-6xqx-2vrq

Affected Packages