Vulnerability identifier: #VU80852

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28831

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SIMATIC S7-1200 CPU family
Hardware solutions / Firmware
SIMATIC S7-1500 Software Controller V3
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1511-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1511C-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1511F-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1511T-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1511TF-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1512C-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1512SP F-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1512SP-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1513-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1513F-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1513R-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1514SP F-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1514SP-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1514SPT F-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1514SPT-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1515-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1515F-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1515R-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1515T-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1515TF-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1516-3 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1516F-3 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1516T-3 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1516TF-3 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1517-3 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1517F-3 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1517H-3 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1517T-3 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1517TF-3 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1518-4 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1518F-4 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1518HF-4 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1518T-4 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1518TF-4 PN/DP
Hardware solutions / Firmware
SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK
Hardware solutions / Firmware
SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK
Hardware solutions / Firmware
SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN
Hardware solutions / Firmware
SIMATIC S7-1500 Software Controller V2
Hardware solutions / Firmware
SIPLUS ET 200SP CPU 1510SP F-1 PN
Hardware solutions / Firmware
SIPLUS ET 200SP CPU 1510SP F-1 PN RAIL
Hardware solutions / Firmware
SIPLUS ET 200SP CPU 1510SP-1 PN
Hardware solutions / Firmware
SIPLUS ET 200SP CPU 1510SP-1 PN RAIL
Hardware solutions / Firmware
SIPLUS ET 200SP CPU 1512SP F-1 PN
Hardware solutions / Firmware
SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL
Hardware solutions / Firmware
SIPLUS ET 200SP CPU 1512SP-1 PN
Hardware solutions / Firmware
SIPLUS ET 200SP CPU 1512SP-1 PN RAIL
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1511-1 PN
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1511-1 PN TX RAIL
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1511F-1 PN
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1513-1 PN
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1513F-1 PN
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1515F-2 PN
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1515F-2 PN RAIL
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1515R-2 PN
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1515R-2 PN TX RAIL
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1516-3 PN/DP
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1516F-3 PN/DP
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1517H-3 PN
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1518-4 PN/DP
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1518F-4 PN/DP
Hardware solutions / Firmware
SIPLUS S7-1500 CPU 1518HF-4 PN
Hardware solutions / Firmware
SIMATIC Drive Controller CPU 1504D TF
Hardware solutions / Firmware
SIMATIC Drive Controller CPU 1507D TF
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1510SP F-1 PN
Hardware solutions / Firmware
SIMATIC S7-1500 CPU 1510SP-1 PN
Hardware solutions / Firmware
SIMATIC S7-PLCSIM Advanced
Server applications / SCADA systems
SIMATIC ET 200SP Open Controller CPU 1515SP PC2
Server applications / SCADA systems
SIMATIC Cloud Connect 7 CC712
Other software / Other software solutions
SIMATIC Cloud Connect 7 CC716
Other software / Other software solutions

Vendor: Siemens

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow in the ANSI C OPC UA SDK. A remote attacker can pass specially crafted data to the application, trigger integer overflow and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SIMATIC S7-1200 CPU family: All versions

SIMATIC S7-1500 Software Controller V3: All versions

SIMATIC S7-PLCSIM Advanced: All versions

---

External links
http://cert-portal.siemens.com/productcert/pdf/ssa-711309.pdf

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.