T09 · Insecure Skill Coding Practices
Error
- Location
- scripts/provider-sync.js:21
- Finding
- Hardcoded Telegram Bot Credential in Executable Source<![CDATA[ ## Vulnerability Details **File Location**: `scripts/provider-sync.js`, lines 21-22 **Vulnerability Type**: Hardcoded authentication credential **Risk Level**: High ### Vulnerable Code ```js const TELEGRAM_BOT_TOKEN = '8547915559:AAGqJlIiflFVBayXwT5GS5DsWyBTW_vlfw8'; const TELEGRAM_CHAT_ID = '1156712793'; ``` The credential is subsequently used to construct an authenticated Telegram Bot API endpoint at lines 102-125: ```js function sendTelegramMessage(text) { const url = `https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage`; const payload = JSON.stringify({ chat_id: TELEGRAM_CHAT_ID, text, parse_mode: 'Markdown' }); return new Promise((resolve, reject) => { const parsedUrl = new URL(url); const options = { hostname: parsedUrl.hostname, port: 443, path: parsedUrl.pathname, method: 'POST', headers: { 'Content-Type': 'application/json', 'Content-Length': Buffer.byteLength(payload) } }; const req = https.request(options, (res) => { let data = ''; res.on('data', chunk => data += chunk); res.on('end', () => resolve(data)); }); req.on('error', reject); req.write(payload); req.end(); }); } ``` ### Technical Analysis A Telegram bot token is a bearer credential: possession of the token is generally sufficient to authenticate requests to Telegram's Bot API. Embedding it directly in a distributed Skill makes it available to every person or process that can read the package. Although Telegram notifications are part of the declared provider-synchronization functionality, distributing a shared authentication secret is not necessary and violates least-secret and secure configuration principles. The token should be supplied at deployment time through a protected secret store or environment variable. The code transmits model names and synchronization summaries rather than provider API keys. No evidence was found tha ...[truncated 1609 chars]
- Remediation
- <![CDATA[ ## Remediation Suggestions 1. Revoke the exposed Telegram bot token immediately through Telegram's bot-management controls and issue a replacement. 2. Remove the token and chat identifier from source code, documentation, packaged artifacts, version-control history, build caches, and published releases. 3. Load notification configuration at runtime, for example: ```js const TELEGRAM_BOT_TOKEN = process.env.TELEGRAM_BOT_TOKEN; const TELEGRAM_CHAT_ID = process.env.TELEGRAM_CHAT_ID; ``` 4. Store the replacement token in a deployment secret manager or a permission-restricted secrets file that is excluded from version control and Skill packaging. 5. Disable Telegram notification behavior when the required configuration is absent, returning a clear but non-sensitive status message. 6. Validate the destination chat identifier and restrict bot membership and permissions to the minimum required for sending notifications. 7. Add automated secret scanning to pre-commit checks and CI pipelines to prevent future credential publication. 8. Review Telegram bot activity after rotation for evidence of unauthorized API use. ]]>