A vulnerability has been identified in SIMATIC S7-400 CPU...

7.5 CVSS

Vulnerability Description

A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416-2 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416F-2 DP V7 (All versions), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 PN V7 (All versions < V7.0.3), SIMATIC S7-400 H V4.5 and below CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.9), SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-410 CPU family (incl. SIPLUS variants) (All versions < V8.2.1), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Specially crafted packets sent to port 102/tcp via Ethernet interface, via PROFIBUS, or via Multi Point Interfaces (MPI) could cause the affected devices to go into defect mode. Manual reboot is required to resume normal operation. Successful exploitation requires an attacker to be able to send specially crafted packets to port 102/tcp via Ethernet interface, via PROFIBUS or Multi Point Interfaces (MPI). No user interaction and no user privileges are required to exploit the security vulnerability. The vulnerability could allow causing a denial of service condition of the core functionality of the CPU, compromising the availability of the system.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-113131.pdf

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Affected Vendor

Siemens

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Affected Software

SIMATIC S7-400 CPU 412-1 DP V7, SIMATIC S7-400 CPU 412-2 DP V7, SIMATIC S7-400 CPU 414-2 DP V7, SIMATIC S7-400 CPU 414-3 DP V7, SIMATIC S7-400 CPU 414-3 PN/DP V7, SIMATIC S7-400 CPU 414F-3 PN/DP V7, SIMATIC S7-400 CPU 416-2 DP V7, SIMATIC S7-400 CPU 416-3 DP V7, SIMATIC S7-400 CPU 416-3 PN/DP V7, SIMATIC S7-400 CPU 416F-2 DP V7, SIMATIC S7-400 CPU 416F-3 PN/DP V7, SIMATIC S7-400 CPU 417-4 DP V7, SIMATIC S7-400 CPU 412-2 PN V7, SIMATIC S7-400 H V4.5 and below CPU family (incl. SIPLUS variants), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants), SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants), SIMATIC S7-410 CPU family (incl. SIPLUS variants), SIPLUS S7-400 CPU 414-3 PN/DP V7, SIPLUS S7-400 CPU 416-3 PN/DP V7, SIPLUS S7-400 CPU 416-3 V7, SIPLUS S7-400 CPU 417-4 V7

Vulnerable Versions:

All versions, All versions < V7.0.3, All versions < V6.0.9, All versions < V8.2.1