Vulnerability Information
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Vulnerability Title
MajorDoMo Command Injection in rc/index.php via Race Condition
Vulnerability Description
MajorDoMo (aka Major Domestic Module) is vulnerable to unauthenticated OS command injection via rc/index.php. The $param variable from user input is interpolated into a command string within double quotes without sanitization via escapeshellarg(). The command is inserted into a database queue by safe_exec(), which performs no sanitization. The cycle_execs.php script, which is web-accessible without authentication, retrieves queued commands and passes them directly to exec(). An attacker can exploit a race condition by first triggering cycle_execs.php (which purges the queue and enters a polling loop), then injecting a malicious command via the rc endpoint while the worker is polling. The injected shell metacharacters expand inside double quotes, achieving remote code execution within one second.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Vulnerability Title
MajorDoMo 操作系统命令注入漏洞
Vulnerability Description
MajorDoMo是MajorDoMo社区的一个开源DIY智能家居自动化平台。 MajorDoMo存在操作系统命令注入漏洞，该漏洞源于rc/index.php中来自用户输入的$param变量未经清理直接插入到双引号内的命令字符串中，该命令通过safe_exec()插入数据库队列，而cycle_execs.php脚本在无需身份验证的情况下检索排队的命令并将其直接传递给exec()，攻击者可利用竞争条件实现操作系统命令注入。
CVSS Information
N/A
Vulnerability Type
N/A