漏洞信息
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Vulnerability Title
PACSgear MediaWriter 5.2.1 Unauthenticated RCE via .NET Remoting TCP Service
Vulnerability Description
PACSgear MediaWriter 5.2.1 exposes a .NET Remoting TCP service on port 9000 via PacsgearMediaServerEngine.dll, registered with ObjectURIs RemoteObj and UIRemoteObj, without any authentication requirement. By exploiting the MarshalByRefObject object unmarshalling technique and implementing .NET WebClient class methods, an unauthenticated remote attacker can read and write arbitrary files on the host filesystem. The ObjectURIs are identical across all installations by default. Chaining the arbitrary file write primitive with DLL hijacking opportunities in the MediaWriter service (which runs as NT Authority\\SYSTEM and loads missing DLLs such as CRYPTBASE.DLL from the application directory) enables unauthenticated remote code execution as SYSTEM upon service restart.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability Type
关键功能的认证机制缺失
Vulnerability Title
Hyland PACSgear MediaWriter 授权问题漏洞
Vulnerability Description
Hyland PACSgear MediaWriter是美国Hyland公司的一款医疗影像数据刻录工具。 Hyland PACSgear MediaWriter 5.2.1版本存在安全漏洞,该漏洞源于通过PacsgearMediaServerEngine.dll公开的.NET Remoting TCP服务未设置身份验证,且在反序列化过程中利用MarshalByRefObject对象解组技术和.NET WebClient类方法,导致未经身份验证的远程攻击者可以读取和写入主机文件系统的任意文件,并进一步结合D
CVSS Information
N/A
Vulnerability Type
N/A