VulnerabilityModified

CVE-2022-38465

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl.

HIGH 7.8EPSS 0.22%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.9.2), SIMATIC S7-1500 Software Controller (All versions < V21.9), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), SINUMERIK MC (All versions < V6.21), SINUMERIK ONE (All versions < V6.21). Affected products protect the built-in global private key in a way that cannot be considered sufficient any longer. The key is used for the legacy protection of confidential configuration data and the legacy PG/PC and HMI communication. This could allow attackers to discover the private key of a CPU product family by an offline attack against a single CPU of the family. Attackers could then use this knowledge to extract confidential configuration data from projects that are protected by that key or to perform attacks against legacy PG/PC and HMI communication.

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.22% probability · 13th percentile
CISA KEV: Not listed
Weakness: CWE-522
Affected: siemens/simatic et 200 sp open controller cpu 1515sp pc2 firmware · siemens/simatic et 200 sp open controller cpu 1515sp pc firmware · siemens/simatic drive controller cpu 1504d tf firmware · siemens/simatic drive controller cpu 1507d tf firmware · siemens/simatic s7-1200 cpu 12 1211c firmware · siemens/simatic s7-1200 cpu 12 1212c firmware · siemens/simatic s7-1200 cpu 12 1212fc firmware · siemens/simatic s7-1200 cpu 12 1214fc firmware · siemens/simatic s7-1200 cpu 12 1214c firmware · siemens/simatic s7-1200 cpu 12 1215fc firmware · siemens/simatic s7-1200 cpu 12 1215c firmware · siemens/simatic s7-1200 cpu 12 1217c firmware · siemens/simatic s7-1500 cpu 1510sp-1 firmware · siemens/simatic s7-1500 cpu 1510sp firmware · siemens/simatic s7-1500 cpu 1511-1 firmware · siemens/simatic s7-1500 cpu 151511c-1 firmware · siemens/simatic s7-1500 cpu 151511f-1 firmware · siemens/simatic s7-1500 cpu 1511t-1 firmware · siemens/simatic s7-1500 cpu 1511tf-1 firmware · siemens/simatic s7-1500 cpu 1512c-1 firmware · +25 more
Source: productcert@siemens.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.