CVE-2017-10899

9.8 CRITICAL

📋 TL;DR

This SQL injection vulnerability in A-Reserve and A-Reserve for MT cloud software allows attackers to execute arbitrary SQL commands on affected systems. Organizations using these products in vulnerable versions are at risk of data breaches and system compromise.

💻 Affected Systems

Products:
  • A-Reserve
  • A-Reserve for MT cloud
Versions: 3.8.6 and earlier
Operating Systems: Any OS running the software
Default Config Vulnerable: ⚠️ Yes
Notes: Cloud versions specifically mentioned, but likely affects on-premise installations with same version range.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to data theft, privilege escalation, and potential remote code execution on the underlying server.

🟠

Likely Case

Unauthorized data access, modification, or deletion of reservation and customer information.

🟢

If Mitigated

Limited impact with proper input validation and database permissions in place.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

SQL injection typically has low exploitation complexity, though specific vectors are unspecified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version 3.8.7 or later

Vendor Advisory: https://jvn.jp/en/jp/JVN78501037/index.html

Restart Required: Yes

Instructions:

1. Backup current installation and database. 2. Download and install version 3.8.7 or later from vendor. 3. Restart application services. 4. Verify functionality.

🔧 Temporary Workarounds

Input Validation Filter

all

Implement strict input validation and parameterized queries at application layer

Database Permission Reduction

all

Limit database user permissions to minimum required for application functionality

🧯 If You Can't Patch

  • Implement web application firewall with SQL injection rules
  • Isolate affected systems from internet and restrict network access

🔍 How to Verify

Check if Vulnerable:

Check software version in admin interface or configuration files. If version is 3.8.6 or earlier, system is vulnerable.

Check Version:

Check application admin panel or configuration files for version information

Verify Fix Applied:

Confirm version is 3.8.7 or later and test application functionality.

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL query patterns
  • Multiple failed login attempts with SQL-like syntax
  • Database error messages in application logs

Network Indicators:

  • Unusual database connection patterns
  • SQL keywords in HTTP requests

SIEM Query:

source="web_logs" AND (url="*SELECT*" OR url="*UNION*" OR url="*INSERT*" OR url="*DELETE*")

🔗 References

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