T05 · Unauthorized Access and Privilege Escalation
Warning
- Location
- SKILL.md:16
- Finding
- Overbroad Full Disk Access Recommendation<![CDATA[ ## Vulnerability Details **File Location**: `SKILL.md:16-21` **Vulnerability Type**: Excessive operating-system permissions **Risk Level**: Medium ### Vulnerable Content ```markdown **Option 2:** If you get a permission error, grant Full Disk Access: - Open **System Settings → Privacy & Security → Full Disk Access** - Click **+** and add Python or your terminal app ``` ### Technical Analysis The documentation recommends granting macOS Full Disk Access to a general-purpose Python interpreter or terminal application. This permission is substantially broader than the read access needed for the single iMessage database at `~/Library/Messages/chat.db`. Full Disk Access is assigned to the application rather than narrowly to this script or one database. Consequently, unrelated programs subsequently launched through the authorized terminal or interpreter may inherit access to protected user data. The script does not itself exploit the granted permission or access unrelated protected files. The vulnerability is the documented privilege model, which violates least privilege and expands the consequences of any later malicious or compromised code executed through the authorized application. ### Attack Path 1. The user runs the analyzer and encounters a permission error. 2. Following `SKILL.md`, the user grants Full Disk Access to Python or the terminal. 3. The broad permission remains enabled after analysis finishes. 4. The user later executes an unrelated, malicious, or compromised script through that authorized application. 5. That process accesses protected files beyond the iMessage database under the inherited authorization. ### Impact Assessment An attacker able to execute code through the authorized Python interpreter or terminal could potentially read macOS-protected information available to that application, including messages and other private application data. The precise scope depends on macOS controls and the authorized application. This iss ...[truncated 135 chars]
- Remediation
- <![CDATA[ ## Remediation Suggestions - Do not recommend persistent Full Disk Access for a general-purpose terminal or Python interpreter. - Prefer having the user export or copy only the required conversation data into a dedicated, user-approved location. - If elevated access is unavoidable, use a narrowly scoped, signed helper rather than a general interpreter. - Explain the permission's full scope before requesting it. - Instruct users to revoke temporary authorization immediately after completing the analysis. - Ensure the analyzer requests explicit confirmation before accessing message content. ]]>