T05 · Unauthorized Access and Privilege Escalation
Warning
- Location
scripts/script.sh:31- Finding
Undisclosed Access to System Information and System Logs
- Content
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/dev/null || echo "uptime: unknown")" _log "status" "${1:-}" } cmd_check() { echo " CPU: $(grep -c processor /proc/cpuinfo 2>/dev/null || echo "?") cores Mem: $(free -h 2>/dev/null | awk "/Mem/{print \$3"/"\$2}" || echo "?")" _log "check" "${1:-}" } cmd_logs() { echo " Recent: $(tail -5 /var/log/syslog 2>/dev/null || echo "no access")" _log "logs" "${1:-}" } cmd_info() { uname -a 2>/dev/null; echo " Disk: $(df -h / 2>/dev/null | tail -1)" _log "info" "${1:-}" } ``` ### Technical Analysis The public Skill documentation describes an Nginx configuration generator, but `scripts/script.sh` contains additional commands that inspect the host operating environment. These commands collect: - System uptime - CPU count - Memory consumption - Kernel and operating-system information - Root filesystem usage - Recent entries from `/var/log/syslog` This information is not required to generate Nginx configurations. In particular, system logs may contain hostnames, usernames, service names, network addresses, process failures, and other operational details. The script does not elevate privileges or bypass operating-system access controls. Its access is limited to the permissions of the invoking user. Nevertheless, it crosses the least-privilege boundary of the advertised task by accessing unrelated system information without disclosure in `SKILL.md`. ### Attack Path 1. A user or agent installs the project believing it provides only Nginx configuration-generation capabilities. 2. The user or agent invokes `nginx-config status`, `check`, `logs`, or `info`. 3. The script reads operating-system i ...[truncated 935 chars]- Remediation
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