Title: ABB Cylon Aspect 3.08.01 (persistenceManagerAjax.php) Directory Traversal
Advisory ID: ZSL-2024-5837
Type: Local/Remote
Impact: Exposure of System Information
Risk: (4/5)
Release Date: 10.10.2024

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 BMS/BAS controller has a directory traversal vulnerability that can be exploited by an unauthenticated attacker to list the contents of arbitrary directories without reading file contents, leading to information disclosure of directory structures and filenames. This may expose sensitive system details, aiding in further attacks. The issue lies in the listFiles() function of the persistenceManagerAjax.php script, which calls PHP's readdir() function without proper input validation of the 'directory' POST parameter.

Vendor

ABB Ltd. - https://www.global.abb

Affected Version

NEXUS Series, MATRIX-2 Series, ASPECT-Enterprise, ASPECT-Studio
Firmware: <=3.08.01

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)

Vendor Status

[21.04.2024] Vulnerability discovered.
[22.04.2024] Vendor contacted.
[22.04.2024] Vendor responds.
[02.05.2024] Working with the vendor.
[07.08.2024] Vendor released version 3.08.02 to address this issue.
[10.10.2024] Public security advisory released.

PoC

abb_aspect_dir1.txt

Credits

Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>

References

[1] https://packetstormsecurity.com/files/182143/

Changelog

[10.10.2024] - Initial release

Contact

Zero Science Lab

Web: https://www.zeroscience.mk
e-mail: lab@zeroscience.mk