CVE-2025-30507: CyberData 011209 Intercom SQLi Vulnerability

CVE-2025-30507 Overview

CVE-2025-30507 is a blind SQL injection vulnerability affecting the CyberData 011209 SIP Emergency Intercom firmware. This vulnerability allows an unauthenticated attacker to gather sensitive information from the device's backend database through specially crafted SQL injection payloads. As an IoT/embedded device commonly deployed in physical security and emergency communication scenarios, exploitation of this vulnerability could expose critical infrastructure information.

Critical Impact

Unauthenticated attackers can extract sensitive information from CyberData 011209 SIP Emergency Intercom devices through blind SQL injection, potentially compromising emergency communication systems and revealing device credentials.

Affected Products

• CyberData 011209 SIP Emergency Intercom Firmware (all versions)
• CyberData 011209 SIP Emergency Intercom (hardware)

Discovery Timeline

• 2025-06-09 - CVE-2025-30507 published to NVD
• 2025-08-12 - Last updated in NVD database

Technical Details for CVE-2025-30507

Vulnerability Analysis

This vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), commonly known as SQL Injection. The CyberData 011209 SIP Emergency Intercom contains a blind SQL injection flaw that can be exploited remotely over the network without any authentication requirements.

Blind SQL injection differs from standard SQL injection in that the attacker cannot directly see the results of their queries in the application's response. Instead, they must infer information by observing differences in the application's behavior—such as response times (time-based blind SQL injection) or different response content (boolean-based blind SQL injection).

The vulnerability exists within the device's web-based management interface, where user-supplied input is not properly sanitized before being incorporated into SQL queries executed against the backend database.

Root Cause

The root cause of CVE-2025-30507 lies in improper input validation and sanitization within the CyberData 011209 firmware. User-controlled input is passed directly to SQL query construction without adequate escaping or parameterization, allowing attackers to inject malicious SQL statements that modify the intended query logic.

This represents a fundamental secure coding failure where dynamic SQL queries are constructed using string concatenation rather than prepared statements or parameterized queries, which would prevent SQL injection by design.

Attack Vector

The attack vector for this vulnerability is network-based, requiring no authentication or user interaction. An attacker with network access to the CyberData 011209 SIP Emergency Intercom's web management interface can exploit this vulnerability by sending specially crafted HTTP requests containing SQL injection payloads.

In a blind SQL injection attack against this device, the attacker would typically:

1. Identify input fields or parameters vulnerable to SQL injection
2. Craft payloads that cause detectable differences in application behavior
3. Use boolean-based or time-based techniques to extract data one character at a time
4. Progressively extract sensitive information such as credentials, configuration data, or other stored information

Since these intercom devices are often deployed in emergency communication scenarios, successful exploitation could reveal network configurations, SIP credentials, or other sensitive operational data. For detailed technical information, refer to the CISA ICS Advisory ICSA-25-155-01.

Detection Methods for CVE-2025-30507

Indicators of Compromise

• Unusual HTTP requests to the CyberData 011209 web interface containing SQL metacharacters such as single quotes, semicolons, or SQL keywords
• Abnormally slow response times from the device that may indicate time-based SQL injection attempts
• Multiple sequential requests to the same endpoint with slightly varying parameters (characteristic of automated SQLi tools)
• Web server logs showing requests with encoded SQL payloads or UNION SELECT statements

Detection Strategies

• Deploy web application firewall (WAF) rules to detect and block common SQL injection patterns targeting the intercom's management interface
• Implement network intrusion detection signatures to identify SQL injection attack patterns in HTTP traffic
• Monitor for automated scanning tools such as SQLMap that may be used to exploit this vulnerability
• Enable and monitor web server access logs on network segments where CyberData intercoms are deployed

Monitoring Recommendations

• Establish baseline network traffic patterns for CyberData intercom devices and alert on anomalies
• Implement network segmentation to isolate IoT/embedded devices and monitor cross-segment traffic
• Configure SIEM rules to correlate multiple failed or suspicious requests to intercom management interfaces
• Regularly audit access logs for the intercom's web interface for signs of reconnaissance or exploitation attempts

How to Mitigate CVE-2025-30507

Immediate Actions Required

• Restrict network access to the CyberData 011209 management interface to authorized administrator IP addresses only
• Place CyberData intercom devices on isolated network segments with strict access controls
• Implement firewall rules to block external access to the device's web management interface
• Monitor for vendor firmware updates that address this SQL injection vulnerability

Patch Information

No vendor patch information was available at the time of publication. Organizations should monitor CyberData's official channels and the CISA ICS Advisory ICSA-25-155-01 for updates regarding security patches for this vulnerability.

Workarounds

• Disable the web management interface if not required for device administration
• Implement network-level access controls (ACLs) to restrict management interface access to specific trusted hosts
• Deploy a reverse proxy or WAF in front of the management interface with SQL injection filtering enabled
• Use VPN or jump host requirements for administrative access to intercom devices

# Example firewall rule to restrict access to CyberData management interface
# Only allow access from management network (example: 10.0.10.0/24)
iptables -A INPUT -p tcp --dport 80 -s 10.0.10.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -s 10.0.10.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP