Siemens TeleControl Server Basic 3.1.2.1 UpdateSmtpSettings sql injection

Summaryinfo

A vulnerability was found in Siemens TeleControl Server Basic. It has been declared as critical. This issue affects the function UpdateSmtpSettings. Such manipulation leads to sql injection. This vulnerability is documented as CVE-2025-31349. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Siemens TeleControl Server Basic and classified as critical. Affected by this issue is the function UpdateSmtpSettings. The manipulation with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is vulnerable to SQL injection through the internally used 'UpdateSmtpSettings' method. This could allow an authenticated remote attacker to bypass authorization controls, to read from and write to the application's database and execute code with "NT AUTHORITY\NetworkService" permissions. A successful attack requires the attacker to be able to access port 8000 on a system where a vulnerable version of the affected application is executed on. (ZDI-CAN-25919)

The advisory is shared for download at cert-portal.siemens.com. This vulnerability is handled as CVE-2025-31349 since 03/28/2025. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/19/2025). The MITRE ATT&CK project declares the attack technique as T1505.

Upgrading to version 3.1.2.2 eliminates this vulnerability.

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Productinfo

Vendor

• Siemens

Name

• TeleControl Server Basic

Version

• 3.1.2.1

License

• commercial

Website

• Vendor: https://www.siemens.com/

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