T06 · System Persistence
Error
- Location
README.md:78- Finding
Documented Cron Job Creates Persistent Recurring Execution
- Content
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report.txt ``` ### Technical Analysis The documentation instructs the user to add a cron entry that executes the Skill every day. Although this is disclosed and functionally related to scheduled reporting, the core report-generation functionality only requires on-demand execution. Registering a scheduled task introduces cross-session persistence beyond that minimum requirement. The cron entry executes a mutable script by path. It does not pin the executed file to a trusted version, verify its integrity, use an explicitly restricted account, or protect the Skill directory from later modification. Consequently, compromise or replacement of `scripts/analyze_replies.py` after installation would turn the existing cron entry into a recurring execution mechanism. The project does not install the cron entry automatically; exploitation depends on a user following the documented instructions. ### Attack Path 1. A user follows the README and registers the supplied cron entry. 2. The cron daemon begins executing `scripts/analyze_replies.py` daily under the privileges of the account that owns the crontab. 3. An attacker, compromised update process, or another process with write access to the Skill directory modifies or replaces the script. 4. At the next scheduled time, cron executes the modified code without further user interaction. 5. The modified code continues to run on each subsequent schedule until the cron entry is removed. ### Impact Assessment The attacker could repeatedly execute arbitrary code with the permissions of the cron-owning account. This does not inherently provide privilege escalation: a user crontab runs as that user, while a system or privileged crontab could increase the impact if configured impro ...[truncated 218 chars]- Remediation
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