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ABB Cylon Aspect 3.08.00 (log(Mix/Yum)Lookup.php) Off-by-One Error in Log Parsing

Critical
Advisory ID
ZSL-2024-5861
Release Date
05 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 was identified in a PHP script where an off-by-one error in array access could lead to undefined behavior and potential DoS. The issue arises in a loop that iterates over an array using a <= condition, allowing access to an out-of-bounds index. This can trigger errors or unexpected behavior when processing data, potentially crashing the application. Successful exploitation of this vulnerability can lead to a crash or disruption of service, especially if the script handles large data sets.

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.
05.11.2024Public security advisory released.
Credits
Vulnerability discovered by Gjoko Krstic
References
Changelog
05.11.2024Initial release
08.11.2024Added reference [2]