CVE-2021-40358

Summary

A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3 UC04), 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 V7.4 (All versions < V7.4 SP1 Update 19), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 5). Legitimate file operations on the web server of the affected systems do not properly neutralize special elements within the pathname. An attacker could then cause the pathname to resolve to a location outside of the restricted directory on the server and read, write or delete unexpected critical files.

Affected Software

VendorProductVersion RangeStatus
SiemensSIMATIC PCS 7 V8.2All versionsaffected
SiemensSIMATIC PCS 7 V9.0All versions < V9.0 SP3 UC04affected
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 V7.4All versions < V7.4 SP1 Update 19affected
SiemensSIMATIC WinCC V7.5All versions < V7.5 SP2 Update 5affected

Weaknesses

  • CWE-22: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

ADP Enrichment

CVE Program Container

Additional References

References