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ABB Cylon Aspect 3.08.00 (fileSystemUpdate.php) Insecure File Upload

Medium
Advisory ID
ZSL-2024-5866
Release Date
28 November 2024
Vendor
Affected Version
NEXUS Series, MATRIX-2 Series, ASPECT-Enterprise, ASPECT-Studio, Firmware: <=3.08.00
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)
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

A vulnerability exists in the fileSystemUpdate.php endpoint of the ABB BEMS controller due to improper handling of uploaded files. The endpoint lacks restrictions on file size and type, allowing attackers to upload excessively large or malicious files. This flaw could be exploited to cause Denial-of-Service (DoS) attacks, memory leaks, or buffer overflows, potentially leading to system crashes or further compromise.

Proof of Concept
Disclosure Timeline
21.04.2024Vulnerability discovered.
22.04.2024Vendor contacted.
22.04.2024Vendor responds.
02.05.2024Working with the vendor.
08.03.2024Vendor released version 3.08.01 to address this issue.
28.11.2024Public security advisory released.
Credits
Vulnerability discovered by Gjoko Krstic
References
Changelog
28.11.2024Initial release
06.12.2024Added reference [1]