CVE-2026-25550— Seagull BarTender 代码问题漏洞

Seagull Software BarTender Unauthenticated RCE via .NET Remoting Service

Seagull Software BarTender 2010, 2016, and 2019 contain an unauthenticated remote code execution vulnerability in the .NET Remoting service exposed on TCP port 7375 via BtSystem.Service.exe. The service registers an unauthenticated singleton endpoint — BarTenderSystem for BarTender 2016 <= R9, and DataServiceSingleton for BarTender 2019 <= R10 — configured with BinaryServerFormatterSinkProvider and TypeFilterLevel set to Full. An unauthenticated remote attacker can exploit .NET Remoting object unmarshalling to read or write arbitrary files on the server using the .NET WebClient class, or coerce NTLMv2 authentication by supplying a UNC path to an attacker-controlled server, enabling sensitive credential disclosure, remote code execution, or lateral movement depending on service account privileges and network environment. The service runs in the context of NT AUTHORITY\SYSTEM.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

关键功能的认证机制缺失

Seagull BarTender 代码问题漏洞

Seagull BarTender是美国Seagull公司的一款企业级标签、条码和RFID设计与打印软件。 Seagull BarTender 2010版本、2016版本和2019版本存在代码问题漏洞，该漏洞源于.NET Remoting服务未经验证且配置不当，可能导致未经身份验证的远程攻击者利用对象反序列化读取或写入任意文件，或强制NTLMv2认证。

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