CVE-2026-107578— hMailServer 链接解析不当导致远程代码执行漏洞
一分钟漏洞结论
影响对象
Progressive Robot Ltd hMailServer
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
hMailServer 6.3.4 和 6.3.5 版本中 hMailServer.exe 的命令行管理操作存在路径解析不当及外部控制文件路径的问题，允许已在低权限服务账户下运行的本地攻击者实现权限提升。 在 Windows 系统上，由安装程序、数据库配置工具（DBSetup）、控制面板或管理员以管理员权限执行的操作，会将日志条目和崩溃记录写入日志文件夹，并在数据文件夹中创建、删除以及修改自签名证书和私钥的权限，同时重写数据文件夹中的邮件文件。这些操作均通过服务账户（NT SERVICE\hMailServer，自
可能的 ATT&CK 技术 1 AI
T1548.001 · Setuid and Setgid
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一、 漏洞 CVE-2026-107578 基础信息
漏洞信息
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Vulnerability Title
Improper Link Resolution Before File Access ('Link Following') in hMailServer
来源: CVE Program / CVE List V5
Vulnerability Description
Improper link resolution and external control of file paths in the administrative command-line operations of hMailServer.exe in Progressive Robot hMailServer 6.3.4 and 6.3.5 allow a local attacker who already runs code as the low-privilege service account to escalate privilege. On Windows, operations run with administrator rights by the installer, DBSetup, the Control Panel or an administrator wrote log entries and crash records into the log folder, created, deleted and changed the permissions of the self-signed certificate and private key in the data folder, and rewrote message files in the data folder, all by path in folders the service account (NT SERVICE\hMailServer, the default for new installations since 6.3.4) can modify, following junctions and mount points; and the store-maintenance operations reached files by names taken from the database, which the service account can write, including names outside the data folder. On Linux, the store-maintenance and object-storage operations run as root followed symbolic links the service account (the packaged hmailserver user, which owns the data folder) planted in it, so a root-run operation read, wrote or removed the link's target as root. A local attacker controlling the service account can thereby gain the administrator's (Windows) or root's (Linux) privileges when such an operation is run.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Progressive Robot Ltd | hMailServer | 6.3.4 ~ 6.3.6 | - |
|
二、漏洞 CVE-2026-107578 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
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CVE-2026-107578 其他参考 (2)
同批安全公告 · Progressive Robot Ltd · 2026-10-08 · 共 22 条
| CVE-2026-103647 | 8.0 HIGH | hMailServer 跨站脚本漏洞 |
| CVE-2026-103010 | 7.8 HIGH | hMailServer 堆缓冲区溢出漏洞 |
| CVE-2026-104660 | 7.8 HIGH | hMailServer 缺少授权漏洞 |
| CVE-2026-104658 | 7.8 HIGH | hMailServer 安全决策依赖不可信输入漏洞 |
| CVE-2026-107573 | 7.8 HIGH | hMailServer 默认权限配置错误漏洞 |
| CVE-2026-107577 | 7.5 HIGH | hMailServer 无限循环漏洞 |
| CVE-2026-107574 | 7.5 HIGH | hMailServer 低效算法复杂度漏洞 |
| CVE-2026-107579 | 7.5 HIGH | hMailServer 算法复杂度低效漏洞 |
| CVE-2026-107576 | 7.5 HIGH | hMailServer 算法复杂度低效漏洞 |
| CVE-2026-104659 | 7.5 HIGH | hMailServer 邮件验证错误 |
| CVE-2026-103649 | 7.5 HIGH | hMailServer 同步访问远程资源无超时漏洞 |
| CVE-2026-107584 | 7.4 HIGH | hMailServer 安全失败机制缺陷 |
| CVE-2026-104704 | 7.4 HIGH | hMailServer 敏感信息明文传输漏洞 |
| CVE-2026-107583 | 6.5 MEDIUM | hMailServer 算法复杂度低效漏洞 |
| CVE-2026-107572 | 6.5 MEDIUM | hMailServer 正则表达式复杂度低效漏洞 |
| CVE-2026-107581 | 6.5 MEDIUM | hMailServer 算法复杂度低效漏洞 |
| CVE-2026-107582 | 6.5 MEDIUM | hMailServer 算法复杂度低效漏洞 |
| CVE-2026-107580 | 6.5 MEDIUM | hMailServer 算法复杂度低漏洞 |
| CVE-2026-103011 | 6.5 MEDIUM | hMailServer 堆缓冲区溢出漏洞 |
| CVE-2026-107587 | 5.9 MEDIUM | hMailServer 证书验证不当漏洞 |
显示前 20 条，共 22 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-107578
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