New Black Box Firmware Fixes Hole

Thursday, May 26, 2016 @ 04:05 PM gHale


Black Box released new firmware version to mitigate a credential management vulnerability in its AlertWerks ServSensor devices, according to a report on ICS-CERT.

Independent researcher, Lee Ryman, who discovered the vulnerability, tested the new firmware version to validate that it resolves the remotely exploitable vulnerability.

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The following AlertWerks ServSensor versions suffer from the issue:
• 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
• 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.

Black Box is a U.S.-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 see action across several sectors including commercial facilities. Black Box estimates these products see use worldwide.

In terms of credentials management, an authenticated user may be able to query administrator and user passwords.

CVE-2016-2311 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 6.5.

No known public exploits specifically target this vulnerability. However, 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.

Black Box recommends users to install the new firmware version.