Executive brief
systeminformation is a popular Node.js library used to gather system and network information. A command injection vulnerability in the inetChecksite() function allows attackers to execute arbitrary system commands if unsanitized service parameters are passed to it, potentially compromising the host system and enabling data theft or lateral movement.
Technical details
A command injection vulnerability (CWE-78) exists in systeminformation versions before 4.27.11, specifically in the inetChecksite() function. The vulnerability stems from insufficient sanitization of service parameter strings that are passed to shell commands. An attacker with appropriate access to supply parameters to the affected function can inject arbitrary shell metacharacters to execute unauthorized commands on the system. The fix involved implementing proper shell string sanitization. All versions prior to 4.27.11 are affected; users should upgrade immediately.
Affected products
- systeminformation systeminformation <4.27.11
Timeline
- 2020-10-27: disclosed
- 2020-10-27: patched: Version 4.27.11 released with shell string sanitization fix