T05 · Unauthorized Access and Privilege Escalation
Warning
- Location
- SKILL.md:95
- Finding
- Unrestricted Sensitive System and Environment Enumeration## Vulnerability Details **File Location**: `SKILL.md:95`, `SKILL.md:124`, `SKILL.md:132`, `SKILL.md:160`, `SKILL.md:166-168`, and `SKILL.md:180-183` **Vulnerability Type**: T05: Unauthorized Access and Privilege Escalation **Risk Level**: Medium ### Vulnerable Code Snippets ```bash ps aux ``` ```bash netstat -tulpn ``` ```bash ss -tuln ``` ```bash lsmod ``` ```bash printenv env set ``` ```bash iptables -L ufw status verbose firewall-cmd --list-all pfctl -s rules ``` ### Technical Analysis The skill presents broad system-enumeration commands as general listing operations without requiring explicit authorization, limiting collection to task-relevant information, or providing output-redaction safeguards. In particular, `printenv`, `env`, and shell `set` can disclose sensitive runtime values such as API keys, access tokens, credentials, proxy secrets, service endpoints, and shell functions. The `set` command can expose more information than environment-only commands because it may include shell-local variables and function definitions. The process, listening-port, kernel-module, and firewall commands disclose detailed host-security topology. Depending on operating-system permissions, commands such as `netstat -tulpn`, `iptables -L`, and `pfctl -s rules` may also reveal privileged process associations or security policy details. The document does not itself bypass permissions or execute these commands automatically, but its broad trigger and lack of least-privilege constraints can cause an agent to collect substantially more sensitive information than a routine file-listing request requires. ### Attack Path 1. A user or untrusted prompt invokes the broadly described listing skill. 2. The agent interprets the request as authorization to inspect general system state. 3. The agent runs commands such as `printenv`, `set`, `ps aux`, `netstat -tulpn`, or firewall-rule enumeration. 4. Cred ...[truncated 1529 chars]
- Remediation
- ## Remediation Suggestions 1. Remove `printenv`, `env`, and `set` from general-purpose listing guidance. Provide targeted alternatives that display only explicitly requested, non-sensitive variable names. 2. Require explicit informed confirmation before enumerating environment variables, all processes, process-to-port mappings, kernel modules, routing information, or firewall rules. 3. Apply least-privilege defaults. File-listing requests should run only file-listing commands and must not implicitly authorize broader host reconnaissance. 4. Introduce a strict allowlist of safe commands and options for each supported intent. 5. Redact values whose names match secret patterns such as `TOKEN`, `SECRET`, `PASSWORD`, `PASS`, `KEY`, `CREDENTIAL`, `AUTH`, and `COOKIE`. 6. Return only task-relevant fields. For example, omit process command-line arguments and process ownership unless the user explicitly requests them. 7. Avoid privileged execution and clearly state that the skill must not use `sudo`, elevation, or permission bypasses to obtain otherwise inaccessible details. 8. Prevent sensitive command output from being retained in persistent memory, telemetry, or logs. 9. Document trust boundaries and warn that system-enumeration output may contain confidential information that should not be shared with third parties.