ICSA-22-223-05: Siemens SICAM A8000 Web Server Module
CISA advisory · released 2022-08-09
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 1, 2022-08-09 (final)
CISA's summary
Summary: A vulnerability was identified in the web server module used in the SICAM A8000 CP-8000, CP-8021 and CP-8022 devices' protocol firmwares. - AGPMT0 (AGP Master) - DNPiT1 (DNP3 TCP/IP Server) - DNPiT2 (DNP3 TCP/IP Client) - DNPMT0 (DNP3 Master seriell) - DNPST0 (DNP3 Slave seriell) - ET83 (61850 Ed.1) - ET85 (61850 Ed.2) - MBCiT0 (MODBUS TCP/IP Client) - MBSiT0 (MODBUS TCP/IP Server) - MODMT2 (MODBUS Master seriell) - OPUPT0 (OPCUA Pub/Sub) - OPUPT1 (Mindconnect) The vulnerability could allow unauthenticated access to the web interface of the affected web server module. The module is used for diagnostic purposes as well as commissioning and has to be activated manually within the protocol firmwares. For this reason the protocol firmwares are secure by default. Siemens updated the manual to make the situation transparent and raise awareness for operators. Siemens recommends countermeasures for products where updates are not, or not yet available.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | CP-8000 MASTER MODULE WITH I/O -25/+70°C | vers:all/* |
| Siemens | CP-8000 MASTER MODULE WITH I/O -40/+70°C | vers:all/* |
| Siemens | CP-8021 MASTER MODULE | vers:all/* |
| Siemens | CP-8022 MASTER MODULE WITH GPRS | vers:all/* |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2021-46304 — CVE-2021-46304 · CWE-284
The component allows to activate a web server module which provides unauthenticated access to its web pages. This could allow an attacker to retrieve debug-level information from the component such as internal network topology or connected systems.
Acknowledgments, as the advisory lists them
- Siemens ProductCERT: reporting this vulnerability to CISA.
- CybExer Technologies: reporting the vulnerability
The advisory's legal notice
Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.
Sources
DeSpy's copy of this version is dated 2026-09-28.
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