CVE-2025-13294 Overview
CVE-2025-13294 is an unauthenticated SQL injection vulnerability in the web server of TBEA TLogger V2.1.0.0B0.0.0.0. Multiple HTTP endpoints pass attacker-controlled parameters directly into SQLite queries without validation or parameterization. A remote attacker with no authentication can query, modify, or delete records in the device's CCU.db database. The flaw is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command).
Critical Impact
Unauthenticated network attackers can read, modify, or delete operational data in the TLogger CCU.db database, undermining integrity and availability of the device.
Affected Products
- TBEA TLogger V2.1.0.0B0.0.0.0
- Web server component exposing vulnerable HTTP endpoints
- Embedded SQLite database CCU.db
Discovery Timeline
- 2026-08-10 - CVE-2025-13294 published to NVD
- 2026-08-12 - Last updated in NVD database
Technical Details for CVE-2025-13294
Vulnerability Analysis
The TBEA TLogger V2 web server exposes multiple HTTP endpoints that build SQL statements by concatenating user-supplied parameters into query strings. These queries target the local SQLite database CCU.db, which stores device configuration and operational data. Because the server does not sanitize input or use parameterized queries, attackers can inject arbitrary SQL fragments through standard HTTP requests.
Exploitation requires no credentials and no user interaction. An attacker who reaches the device on the network can issue crafted requests to affected endpoints and manipulate the resulting SQL. The impact covers all three classic database operations: reading arbitrary tables, altering stored records, and deleting rows.
Root Cause
The root cause is unsafe query construction in the web server request handlers. Parameters received over HTTP are concatenated directly into SQLite statements without prepared statements, escaping, or input validation. This is a textbook CWE-89 pattern in an embedded device context.
Attack Vector
The attack vector is network-based and requires no authentication. An attacker sends HTTP requests containing SQL metacharacters and injected clauses to vulnerable endpoints on the TLogger device. The injected SQL executes with the privileges of the web server process against CCU.db, allowing extraction of stored data, tampering with device configuration values, or destruction of records.
No verified public exploit is available at time of publication. See the TBEA vendor site for product identification.
Detection Methods for CVE-2025-13294
Indicators of Compromise
- HTTP requests to TLogger endpoints containing SQL metacharacters such as ', --, UNION SELECT, OR 1=1, or ;
- Unexpected modifications, additions, or deletions in the CCU.db SQLite database
- Web server access logs showing anomalous parameter values or repeated errors from injected payloads
- Requests from external or non-operator source addresses reaching the TLogger management interface
Detection Strategies
- Inspect HTTP request logs on TLogger devices for classic SQL injection patterns in query strings and POST bodies
- Baseline expected client IPs and alert on connections to the TLogger web server from unauthorized hosts
- Monitor for time-based or boolean-based injection signatures using network IDS rules mapped to CWE-89
- Track integrity of CCU.db by hashing the file at known-good states and alerting on unexpected changes
Monitoring Recommendations
- Forward device and network logs to a centralized SIEM for correlation across OT and IT segments
- Alert on HTTP 500 responses from TLogger endpoints, which frequently accompany failed injection attempts
- Review firewall logs for scanning activity targeting TLogger management ports
How to Mitigate CVE-2025-13294
Immediate Actions Required
- Restrict network access to the TLogger web server so only authorized management hosts can reach it
- Place TLogger devices behind a firewall or in an isolated OT VLAN with no direct internet exposure
- Review CCU.db for signs of tampering and restore from a known-good backup if manipulation is suspected
- Contact TBEA to confirm patch availability for TLogger V2.1.0.0B0.0.0.0
Patch Information
No vendor advisory URL is available in the CVE record at the time of publication. Operators should contact TBEA directly to request a fixed firmware version. Refer to the TBEA corporate site for vendor contact information.
Workarounds
- Block inbound access to the TLogger HTTP interface at perimeter and segmentation firewalls
- Require VPN or jump-host access for any administrative interaction with the device
- Deploy a web application firewall or reverse proxy that filters SQL injection patterns in front of the TLogger web server
- Disable the web interface where operationally feasible until a firmware fix is applied
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
