CVE-2021-40363

Summary

A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP1), SIMATIC WinCC V15 and earlier (All versions < V15 SP1 Update 7), SIMATIC WinCC V16 (All versions < V16 Update 5), SIMATIC WinCC V17 (All versions < V17 Update 2), SIMATIC WinCC V17 (All versions <= V17 Update 4), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Update 19), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 6). The affected component stores the credentials of a local system account in a potentially publicly accessible project file using an outdated cipher algorithm. An attacker may use this to brute force the credentials and take over the system.

Affected Software

VendorProductVersion RangeStatus
SiemensSIMATIC PCS 7 V8.2All versionsaffected
SiemensSIMATIC PCS 7 V9.0All versionsaffected
SiemensSIMATIC PCS 7 V9.1All versions < V9.1 SP1affected
SiemensSIMATIC WinCC V15 and earlierAll versions < V15 SP1 Update 7affected
SiemensSIMATIC WinCC V16All versions < V16 Update 5affected
SiemensSIMATIC WinCC V17All versions < V17 Update 2affected
SiemensSIMATIC WinCC V17All versions <= V17 Update 4affected
SiemensSIMATIC WinCC V7.4All versions < V7.4 SP1 Update 19affected
SiemensSIMATIC WinCC V7.5All versions < V7.5 SP2 Update 6affected

Weaknesses

  • CWE-538: CWE-538: Insertion of Sensitive Information into Externally-Accessible File or Directory

ADP Enrichment

CVE Program Container

Additional References

References