T05 · Unauthorized Access and Privilege Escalation
Error
- Location
scripts/healthcheck.sh:351- Finding
Excessive Collection of Sensitive User and System Data
- Content
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Vulnerability Details
File Location:
scripts/healthcheck.sh:351-365,scripts/healthcheck.sh:437-451, andscripts/healthcheck.sh:560-570
Vulnerability Type: Sensitive information collection beyond least-privilege requirements
Risk Level: HighVulnerable Code
bash subsection "6.4 SSH Keys & Access" { echo "=== SSH Authorized Keys ===" if [ -d ~/.ssh ]; then for keyfile in ~/.ssh/authorized_keys ~/.ssh/authorized_keys2; do [ -f "$keyfile" ] && echo "$keyfile:" && cat "$keyfile" | head -5 done fi echo "" echo "=== SSH Known Hosts ===" if [ -f ~/.ssh/known_hosts ]; then head -10 ~/.ssh/known_hosts fi } >> "$REPORT_FILE"bash subsection "8.1 Environment Variables" { echo "=== Key Environment Variables ===" echo "PATH: $PATH" | head -5 echo "" echo "=== All Environment Variables ===" env | sort | head -40 } >> "$REPORT_FILE" subsection "8.2 Shell Configuration" { echo "=== Shell History (last 20) ===" if [ -f ~/.bash_history ]; then tail -20 ~/.bash_history fi echo "" echo "=== Aliases ===" alias 2>/dev/null | head -20 } >> "$REPORT_FILE"bash subsection "12.1 User Crontab" crontab -l 2>/dev/null >> "$REPORT_FILE" || echo "No user crontabs" >> "$REPORT_FILE" subsection "12.2 System Cron" { echo "=== /etc/crontab ===" cat /etc/crontab 2>/dev/null echo "" echo "=== Cron.d files ===" ls -la /etc/cron.d/ 2>/dev/null } >> "$REPORT_FILE"Technical Analysis
The declared purpose is PC health diagnostics. CPU, memory, storage, service status, and aggregate security indicators are reasonably related to that purpose. Copying SSH authorization records, known-host entries, arbitrary environment-variable values, command ...[truncated 2193 chars]
- Remediation
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Remediation Suggestions
- Remove raw environment-variable and shell-history collection from the default health check.
- Do not copy
authorized_keysorknown_hostscontents. Report only non-sensitive metadata such as:- Whether the files exist.
- File ownership and permission modes.
- Number of authorized entries.
- Cryptographic fingerprints without comments or key material, when explicitly requested.
- Replace complete cron output with aggregate information, such as the number of configured jobs and whether expected scheduler entries exist.
- Put all security-sensitive inspection behind explicit, separate opt-in flags.
- Redact values matching secret-bearing names such as
TOKEN,PASSWORD,SECRET,API_KEY, and credential URL patterns. - Warn users before collecting data that may identify remote systems or authorization relationships.
- Refuse privileged execution by default, or require an explicit option after clearly explaining the expanded collection scope.