Description
用友U8 Cloud系统的FileManageServlet存在文件读取漏洞，攻击者通过构造特定的序列化数据，可读取服务器上的敏感文件。
用友U8 Cloud /service/FileManageServlet 文件读取漏洞
PoC
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https://github.com/Sec-Fork/POC-20250106/blob/main/%E7%94%A8%E5%8F%8BOA/%E7%94%A8%E5%8F%8BU8-Cloud%E6%8E%A5%E5%8F%A3FileServlet%E5%AD%98%E5%9C%A8%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96%E6%BC%8F%E6%B4%9E.md
https://cn-sec.com/archives/2622392.html
https://stack.chaitin.com/vuldb/detail/128aca6c-1f29-42ff-a970-f1670ab3ab08
https://opc.csdn.net/696e00b1437a6b403369402a.html
https://zhuanlan.zhihu.com/p/1932214870562047555
https://mrxn.net/jswz/yonyou-u8cloud-console-loadRes-fileread.html