CVE-2018-25189

8.2 HIGH

📋 TL;DR

CVE-2018-25189 is an SQL injection vulnerability in Data Center Audit 2.6.2 that allows unauthenticated attackers to execute arbitrary SQL queries through the username parameter in dca_login.php. This enables extraction of sensitive database information including credentials, database structures, and system details. Organizations running vulnerable versions of Data Center Audit are affected.

💻 Affected Systems

Products:
  • Data Center Audit
Versions: 2.6.2
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability exists in the default installation and requires no special configuration to be exploitable.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to credential theft, data exfiltration, privilege escalation, and potential remote code execution through database functions.

🟠

Likely Case

Extraction of sensitive database information including usernames, passwords, database schemas, and potentially gaining administrative access to the application.

🟢

If Mitigated

Limited information disclosure if proper input validation and parameterized queries are implemented, with minimal impact on overall system security.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: CONFIRMED
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploit code is publicly available and requires minimal technical skill to execute. The vulnerability is in the login page, making it easily accessible.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.6.3 or later

Vendor Advisory: https://www.vulncheck.com/advisories/data-center-audit-sql-injection-via-username-parameter

Restart Required: Yes

Instructions:

1. Download the latest version from the vendor. 2. Backup current installation and database. 3. Stop the Data Center Audit service. 4. Install the updated version. 5. Restart the service. 6. Verify functionality.

🔧 Temporary Workarounds

Input Validation Filter

all

Implement input validation to reject SQL special characters in the username parameter

Modify dca_login.php to add input sanitization before SQL query execution

Web Application Firewall

all

Deploy WAF rules to block SQL injection patterns in POST requests to dca_login.php

Add WAF rule: Block requests containing SQL keywords in username parameter

🧯 If You Can't Patch

  • Implement network segmentation to restrict access to Data Center Audit to trusted IP addresses only
  • Deploy a reverse proxy with input validation and rate limiting for the login endpoint

🔍 How to Verify

Check if Vulnerable:

Test with SQL injection payload in username parameter: ' OR '1'='1

Check Version:

Check version in application interface or configuration files

Verify Fix Applied:

Attempt SQL injection with same payload; should receive error or rejection instead of successful login

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed login attempts with SQL keywords in username field
  • Unusual database queries from web application user

Network Indicators:

  • POST requests to dca_login.php containing SQL injection patterns
  • Unusual outbound database connections from web server

SIEM Query:

source="web_logs" AND uri="/dca_login.php" AND (username CONTAINS "' OR" OR username CONTAINS "UNION" OR username CONTAINS "SELECT")

🔗 References

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