T05 · Unauthorized Access and Privilege Escalation
Warning
- Location
- SKILL.md:276
- Finding
- Overprivileged System-Wide Host Reconnaissance<![CDATA[ ## Vulnerability Details **File Location**: `SKILL.md`, lines 276–286 **Vulnerability Type**: Excessive privileged host inspection **Risk Level**: Medium ### Vulnerable Code ```bash # Check for unusual cron jobs crontab -l && sudo crontab -l && cat /etc/cron*/* # Check for unusual listening ports ss -tlnp # Check for recently modified files find / -mtime -7 -type f 2>/dev/null | grep -v proc | grep -v sys ``` ### Technical Analysis The Skill recommends enumerating the current user's scheduled tasks, root's crontab, system cron configuration, listening processes, and recently modified files across the entire filesystem. These checks are presented as incident-response steps when threat-actor association is reported. Although the commands are legitimate diagnostic tools, their scope exceeds what is ordinarily required to assess the exposure of an AI service. In particular: - `sudo crontab -l` crosses into root-level configuration. - `/etc/cron*/*` may contain credentials, internal endpoints, backup destinations, or operational scripts. - `ss -tlnp` exposes system-wide process and network-service details when run with sufficient permissions. - `find /` scans unrelated users, applications, and system areas rather than limiting inspection to the AI service. - Output may enter the agent conversation, terminal history, or audit logs, increasing exposure of sensitive operational information. The commands are documentation and are not executed automatically by the Skill. Exploitation requires a user or agent to follow the instructions in an environment where the requested permissions are available. ### Attack Path 1. An endpoint is reported as associated with a threat actor. 2. The Skill recommends the system-wide inspection commands. 3. The operator grants or already possesses `sudo` access and runs the commands. 4. Root cron configuration, service information, and filesystem metadata are printed. 5. Sensitive content is exposed to the terminal, agen ...[truncated 834 chars]
- Remediation
- <![CDATA[ ## Remediation Suggestions 1. Require explicit operator consent before any privileged or system-wide inspection. 2. Default to service-scoped checks, such as inspecting only: - The AI service account's crontab. - The applicable systemd unit. - The service's deployment and configuration directories. - Sockets associated with the relevant process or port. 3. Do not display root cron contents by default. List filenames and metadata first, then inspect individual entries after approval. 4. Limit filesystem searches to known service paths, for example: ```bash find /opt/open-webui /etc/open-webui /var/lib/open-webui \ -xdev -mtime -7 -type f 2>/dev/null ``` 5. Exclude virtual, temporary, user, and mounted filesystems explicitly if a broader scan is justified. 6. Warn that cron files and service configuration may contain secrets. Redact tokens, passwords, URLs containing credentials, and private keys before returning output to an agent. 7. Prefer a dedicated incident-response procedure when compromise is suspected rather than embedding unrestricted host enumeration in a routine endpoint audit. ]]>