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ABB Cylon Aspect 3.08.02 (bbmdUpdate.php) Remote Code Execution

Critical
Advisory ID
ZSL-2025-5903
Release Date
09 January 2025
Vendor
Affected Version
NEXUS Series, MATRIX-2 Series, ASPECT-Enterprise, ASPECT-Studio, Firmware: <=3.08.02
Tested On
GNU/Linux 3.15.10 (armv7l), GNU/Linux 3.10.0 (x86_64), GNU/Linux 2.6.32 (x86_64), Intel(R) Atom(TM) Processor E3930 @ 1.30GHz, Intel(R) Xeon(R) Silver 4208 CPU @ 2.10GHz, PHP/7.3.11, PHP/5.6.30, PHP/5.4.16, PHP/4.4.8, PHP/5.3.3, AspectFT Automation Application Server, lighttpd/1.4.32, lighttpd/1.4.18, Apache/2.2.15 (CentOS), OpenJDK Runtime Environment (rhel-2.6.22.1.-x86_64), OpenJDK 64-Bit Server VM (build 24.261-b02, mixed mode), ErgoTech MIX Deployment Server 2.0.0
Summary

ASPECT is an award-winning scalable building energy management and control solution designed to allow users seamless access to their building data through standard building protocols including smart devices.

Description

The ABB Cylon Aspect BMS/BAS controller suffers from an authenticated blind command injection vulnerability. Input passed to several POST parameters is not properly sanitized when writing files, allowing attackers to execute arbitrary shell commands on the system. There is also an off-by-one error in array access that could lead to undefined behavior and potential DoS.

Proof of Concept
Disclosure Timeline
21.04.2024Vulnerability discovered.
22.04.2024Vendor contacted.
22.04.2024Vendor responds.
02.05.2024Working with the vendor.
03.12.2024Vendor releases version 3.08.03 to address this issue.
09.01.2025Coordinated public security advisory released.
Credits
Vulnerability discovered by Gjoko Krstic
References
Changelog
09.01.2025Initial release
10.01.2025Added reference [6]
09.05.2025Added reference [7]