CVE-2020-11995

Description

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 HasMap 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.

Risk Information

Base Score

9.8

MODERATE

Vector

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

EPSS Score

Exploitation Probability

1.825

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2020-11995 are fixed in Apache - dubbo-parent 2.7.8	Windows
Vulnerabilities CVE-2020-11995 are fixed in Apache - dubbo-parent 2.6.9	Windows
Vulnerabilities CVE-2020-11995 are fixed in Apache - dubbo-parent for Linux 2.7.8	Linux
Vulnerabilities CVE-2020-11995 are fixed in Apache - dubbo-parent for Linux 2.6.9	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234