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ABB Cylon Aspect 3.08.03 (MIX->NTPServlet) Time Manipulation

Critical
Advisory ID
ZSL-2025-5943
Release Date
22 May 2025
Vendor
Affected Version
NEXUS Series, MATRIX-2 Series, ASPECT-Enterprise, ASPECT-Studio, Firmware: <=3.08.03
CVE
N/A
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

ABB Cylon Aspect MIX's NTPServlet allows NTP config changes via the Host: 127.0.0.1 bypass, writing attacker-controlled hosts to NTPTickers and syncing the system clock. A malicious NTP server can manipulate time, enabling DoS or time-based attacks.

Proof of Concept
Disclosure Timeline
21.04.2024Vulnerability discovered.
22.04.2024Vendor contacted.
22.04.2024Vendor responds.
02.05.2024Working with the vendor.
21.05.2025No response from the vendor.
22.05.2025Public security advisory released.
Credits
Vulnerability discovered by Gjoko Krstic
References
Changelog
22.05.2025Initial release
26.05.2025Added reference [1]