ICSA-23-131-04: Siemens SIMATIC Cloud Connect 7

CISA's summary

Summary: SIMATIC Cloud Connect 7 contains multiple vulnerabilities that could allow an attacker to impact its confidentiality, integrity and availability. Siemens has released updates for the affected products and recommends to update to the latest versions.

Products, as the advisory lists them

DeSpy has not checked any unit, hardware revision or firmware.

Vulnerabilities in this advisory

• CVE-2023-28832 — CVE-2023-28832 · CWE-77

  The web based management of affected devices does not properly validate user input, making it susceptible to command injection. This could allow an authenticated privileged remote attacker to execute arbitrary code with root privileges.

• CVE-2023-29103 — CVE-2023-29103 · CWE-259

  The affected device uses a hard-coded password to protect the diagnostic files. This could allow an authenticated attacker to access protected data.

• CVE-2023-29104 — CVE-2023-29104 · CWE-22

  The filename in the upload feature of the web based management of the affected device is susceptible to a path traversal vulnerability. This could allow an authenticated privileged remote attacker to overwrite any file the Linux user `ccuser` has write access to, or to download any file the Linux user `ccuser` has read-only access to.

• CVE-2023-29105 — CVE-2023-29105 · CWE-544

  The affected device is vulnerable to a denial of service while parsing a random (non-JSON) MQTT payload. This could allow an attacker who can manipulate the communication between the MQTT broker and the affected device to cause a denial of service (DoS).

• CVE-2023-29106 — CVE-2023-29106 · CWE-200

  The export endpoint is accessible via REST API without authentication. This could allow an unauthenticated remote attacker to download the files available via the endpoint.

• CVE-2023-29107 — CVE-2023-29107 · CWE-552

  The export endpoint discloses some undocumented files. This could allow an unauthenticated remote attacker to gain access to additional information resources.

• CVE-2023-29128 — CVE-2023-29128 · CWE-22

  The filename in the upload feature of the web based management of the affected device is susceptible to a path traversal vulnerability. This could allow an authenticated privileged remote attacker to write any file with the extension `.db`.

Acknowledgments, as the advisory lists them

• Siemens ProductCERT: reporting these vulnerabilities to CISA.

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

• The advisory at cisa.gov
• The CSAF document (JSON)

DeSpy's copy of this version is dated 2026-09-28.