SCADA Vulnerabilities & Exposures (SVE)

CRITIFENCE® SCADA Vulnerabilities and Exposures Database (SVE)

[SVE-500912336] Black Box AlertWerks ServSensor Credential Management Vulnerability

Date Type Platform Author EDB-ID CVE-ID OSVDB-ID Download App SIS Signature
2016-05-26OTHERAlertWerks ServSensorLee RymanN/A2016-2311N/AN/AN/A


# Black Box AlertWerks ServSensor Credential Management Vulnerability


Independent researcher Lee Ryman has identified a credential management vulnerability in Black Box’s AlertWerks ServSensor devices. ICS-CERT and CERT Australia have coordinated with Black Box that has produced a new firmware version to mitigate this vulnerability. Lee Ryman has tested the new firmware version to validate that it resolves the vulnerability.

This vulnerability could be exploited remotely.


The following AlertWerks ServSensor versions are affected:

Black Box’s AlertWerks ServSensor, model numbers EME105A, EME106A, EME108A-R2, EME109A-R2, and EME110A-R2, firmware versions prior to Version SP473;
Black Box’s AlertWerks ServSensor Junior, model numbers EME102A-R2, EME103A-R2, and EME104A-R2, firmware versions prior to Version SP473;
Black Box’s AlertWerks ServSensor Junior with PoE, model numbers EME152A, EME153A, EME154A, EME155A, and EME158A, firmware versions prior to Version SP473; and
Black Box’s AlertWerks ServSensor Contact, model numbers EME111A-20-R2, EME111A‑60-R2, EME112A-20-R2, EME112A-60-R2, EME113A-20-R2, and EME113A‑60-R2, firmware versions prior to Version SP473.


Successful exploitation of this vulnerability may allow an authenticated user to gain the administrator and user passwords compromising the system.

Impact to individual organizations depends on many factors that are unique to each organization. NCCIC/ICS-CERT recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation.


Black Box is a US-based company that maintains offices in several countries around the world.

The affected product, AlertWerks ServSensor, is the central hub for an environmental monitoring system. According to Black Box, these products are deployed across several sectors including Commercial Facilities. Black Box estimates that these products are used worldwide.




An authenticated user may be able to query administrator and user passwords.
CVE-2016-2311 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).



This vulnerability could be exploited remotely.


No known public exploits specifically target this vulnerability.


An attacker with low skill would be able to exploit this vulnerability.


Black Box has released a new firmware, Version SP473, which addresses the identified vulnerability in all the affected AlertWerks ServSensor models and is available at the following location:

Black Box recommends that users should install the new firmware version.