PT-2023-22153 · Siemens · Simatic Cloud Connect 7 Cc716+1

Published 2023-05-09 · Updated 2023-05-15 · CVE-2023-29105

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions SIMATIC Cloud Connect 7 CC712 versions 2.0 through 2.1 SIMATIC Cloud Connect 7 CC716 versions 2.0 through 2.1

Description A denial of service issue has been identified in the affected devices 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).

Recommendations For SIMATIC Cloud Connect 7 CC712 versions 2.0 through 2.1, update to a version outside of this range to resolve the issue. For SIMATIC Cloud Connect 7 CC716 versions 2.0 through 2.1, update to a version outside of this range to resolve the issue. As a temporary workaround, consider restricting access to the MQTT broker to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-544

Related Identifiers

CVE-2023-29105

Affected Products

Simatic Cloud Connect 7 Cc712

Simatic Cloud Connect 7 Cc716

References · 4

• https://cert-portal.siemens.com/productcert/pdf/ssa-555292.pdf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-29105 · Security Note
• https://osv.dev/vulnerability/CVE-2023-29105 · Vendor Advisory
• https://t.me/cibsecurity/63601 · Telegram Post