CVE-2018-16557
First published: Thu Dec 13 2018(Updated: )
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). Sending of specially crafted packets to port 102/tcp via Ethernet interface via PROFIBUS or Multi Point Interfaces (MPI) could cause a denial of service condition on affected devices. Flashing with a firmware image may be required to recover the CPU. Successful exploitation requires an attacker to have network access to port 102/tcp via Ethernet interface or to be able to send messages via PROFIBUS or Multi Point Interfaces (MPI) to the device. No user interaction is required. If no access protection is configured, no 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.
Credit: productcert@siemens.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens Simatic S7-400 Firmware | <=v6.0 | |
| Siemens Simatic S7-400 | ||
| Siemens Simatic S7-400 Pn\/dp V7 Firmware | ||
| Siemens Simatic S7-400 Pn\/dp V7 | ||
| Siemens Simatic S7-400h Firmware | <=v4.5 | |
| Siemens Simatic S7-400h | ||
| Siemens Simatic S7-410 Firmware | <8.2.1 | |
| Siemens Simatic S7-410 | ||
| Siemens Simatic S7-400h Firmware | >=6.0.0<6.0.9 |
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Frequently Asked Questions
What is CVE-2018-16557?
CVE-2018-16557 is a vulnerability identified in SIMATIC S7-400 CPUs.
What is the severity of CVE-2018-16557?
CVE-2018-16557 has a severity level of 8.2 (high).
Which versions of SIMATIC S7-400 CPUs are affected by CVE-2018-16557?
All versions of SIMATIC S7-400 CPU 412-1 DP V7, CPU 412-2 DP V7, CPU 414-2 DP V7, CPU 414-3 DP V7, and CPU 414-3 PN/DP V7 (versions < V7.0.3) are affected by CVE-2018-16557.
What is the affected software of CVE-2018-16557?
The affected software includes Siemens Simatic S7-400 Firmware (up to v6.0) and Siemens Simatic S7-400 Pn/dp V7 Firmware.
How can I fix CVE-2018-16557?
To mitigate the vulnerability, it is recommended to apply the security update provided by Siemens as mentioned in their advisory.
- collector/nvd-index
- agent/references
- agent/weakness
- agent/severity
- agent/author
- agent/type
- agent/description
- agent/event
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/siemens
- canonical/siemens simatic s7-400 firmware
- version/siemens simatic s7-400 firmware/v6.0
- canonical/siemens simatic s7-400
- canonical/siemens simatic s7-400 pn\/dp v7 firmware
- canonical/siemens simatic s7-400 pn\/dp v7
- canonical/siemens simatic s7-400h firmware
- version/siemens simatic s7-400h firmware/v4.5
- canonical/siemens simatic s7-400h
- canonical/siemens simatic s7-410 firmware
- canonical/siemens simatic s7-410
- version/siemens simatic s7-400h firmware/6.0.0