CVE-2018-16557
Published on: 12/13/2018 12:00:00 AM UTC
Last Modified on: 01/10/2023 12:15:00 PM UTC
Certain versions of Simatic S7-400 from Siemens contain the following vulnerability:
A vulnerability has been identified in 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 S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-410 CPU family (incl. SIPLUS variants) (All versions < V8.2.1). 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.
- CVE-2018-16557 has been assigned by
[email protected] to track the vulnerability - currently rated as HIGH severity. - Affected Vendor/Software: Siemens - SIMATIC S7-400 H V4.5 and below CPU family (incl. SIPLUS variants) version = All versions
- Affected Vendor/Software: Siemens - SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) version = All versions < V6.0.9
- Affected Vendor/Software: Siemens - SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) version = All versions
- Affected Vendor/Software: Siemens - SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) version = All versions
- Affected Vendor/Software: Siemens - SIMATIC S7-410 CPU family (incl. SIPLUS variants) version = All versions < V8.2.1
CVSS3 Score: 7.5 - HIGH
| Attack Vector ⓘ |
Attack Complexity |
Privileges Required |
User Interaction |
|---|---|---|---|
| NETWORK | LOW | NONE | NONE |
| Scope | Confidentiality Impact |
Integrity Impact |
Availability Impact |
| UNCHANGED | NONE | NONE | HIGH |
CVSS2 Score: 7.8 - HIGH
| Access Vector ⓘ |
Access Complexity |
Authentication |
|---|---|---|
| NETWORK | LOW | NONE |
| Confidentiality Impact |
Integrity Impact |
Availability Impact |
| NONE | NONE | COMPLETE |
CVE References
| Description | Tags ⓘ | Link |
|---|---|---|
| Siemens S7-400 CPUs | ICS-CERT | Third Party Advisory US Government Resource ics-cert.us-cert.gov text/html |
MISC ics-cert.us-cert.gov/advisories/ICSA-18-317-02 |
| Vendor Advisory cert-portal.siemens.com application/pdf |
MISC cert-portal.siemens.com/productcert/pdf/ssa-113131.pdf |
Known Affected Configurations (CPE V2.3)
- cpe:2.3:h:siemens:simatic_s7-400:-:*:*:*:*:*:*:*:
- cpe:2.3:h:siemens:simatic_s7-400:-:*:*:*:*:*:*:*:
- cpe:2.3:h:siemens:simatic_s7-400h:-:*:*:*:*:*:*:*:
- cpe:2.3:h:siemens:simatic_s7-400h:-:*:*:*:*:*:*:*:
- cpe:2.3:o:siemens:simatic_s7-400h_firmware:*:*:*:*:*:*:*:*:
- cpe:2.3:o:siemens:simatic_s7-400h_firmware:*:*:*:*:*:*:*:*:
- cpe:2.3:o:siemens:simatic_s7-400h_firmware:*:*:*:*:*:*:*:*:
- cpe:2.3:o:siemens:simatic_s7-400_firmware:*:*:*:*:*:*:*:*:
- cpe:2.3:h:siemens:simatic_s7-400_pn/dp_v7:-:*:*:*:*:*:*:*:
- cpe:2.3:o:siemens:simatic_s7-400_pn/dp_v7_firmware:*:*:*:*:*:*:*:*:
- cpe:2.3:h:siemens:simatic_s7-400_pn\/dp_v7:-:*:*:*:*:*:*:*:
- cpe:2.3:h:siemens:simatic_s7-400_pn\/dp_v7:-:*:*:*:*:*:*:*:
- cpe:2.3:o:siemens:simatic_s7-400_pn\/dp_v7_firmware:*:*:*:*:*:*:*:*:
- cpe:2.3:o:siemens:simatic_s7-400_pn\/dp_v7_firmware:*:*:*:*:*:*:*:*:
- cpe:2.3:h:siemens:simatic_s7-410:-:*:*:*:*:*:*:*:
- cpe:2.3:h:siemens:simatic_s7-410:-:*:*:*:*:*:*:*:
- cpe:2.3:o:siemens:simatic_s7-410_firmware:*:*:*:*:*:*:*:*:
- cpe:2.3:o:siemens:simatic_s7-410_firmware:*:*:*:*:*:*:*:*: