CVE-2018-17232
📋 TL;DR
This CVE describes a critical SQL injection vulnerability in Slack ArchiveBot's archivebot.py script. Attackers can execute arbitrary SQL commands via the text parameter to cursor.execute(), potentially compromising the entire database. Anyone running Slack ArchiveBot versions before 2018-09-19 is affected.
💻 Affected Systems
- Slack ArchiveBot (slack-archive-bot)
📦 What is this software?
Slack Archivebot by Slack Archivebot Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, privilege escalation, and potential remote code execution via database functions.
Likely Case
Database information disclosure, data manipulation, and potential authentication bypass.
If Mitigated
Limited impact with proper input validation and parameterized queries in place.
🎯 Exploit Status
SQL injection vulnerabilities are well-understood and easily weaponized. The GitHub issue shows proof of concept.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version from 2018-09-19 or later
Vendor Advisory: https://github.com/docmarionum1/slack-archive-bot/issues/12
Restart Required: Yes
Instructions:
1. Update to latest version from GitHub repository. 2. Replace vulnerable cursor.execute() calls with parameterized queries. 3. Restart the Slack ArchiveBot service.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize the text parameter before passing to cursor.execute()
# Add input validation in archivebot.py before cursor.execute() calls
# Example: text = re.sub(r'[^a-zA-Z0-9\s]', '', text)
Database Firewall Rules
allImplement database firewall rules to block suspicious SQL queries
# Configure database firewall to block queries with suspicious patterns
# Example: Block queries containing UNION, SELECT * FROM, DROP, etc.
🧯 If You Can't Patch
- Isolate the Slack ArchiveBot instance from other critical systems and databases
- Implement strict network segmentation and monitor all database queries from the application
🔍 How to Verify
Check if Vulnerable:
Check if archivebot.py contains cursor.execute() calls with unsanitized text parameters. Review code for direct string concatenation in SQL queries.Check Version:
Check the commit date in the repository or version metadata. Should be 2018-09-19 or later.Verify Fix Applied:
Verify that all cursor.execute() calls use parameterized queries with placeholders (? or %s) instead of string concatenation.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL query patterns in database logs
- Multiple failed login attempts or unusual database operations
Network Indicators:
- Suspicious SQL injection payloads in HTTP requests to the bot
SIEM Query:
source="database_logs" AND (query="UNION" OR query="SELECT * FROM" OR query="DROP TABLE")