Riskcovery

CVE-2021-40358

State
Published
Severity
9.9 Critical
Published
Nov 9, 2021
Updated
Aug 4, 2024
Reserved
Sep 1, 2021

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.19.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:Csiemens

Weaknesses

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

Affected Products

ProductVersions
SIMATIC PCS 7 V8.2Siemens
  • All versionsAffected
SIMATIC PCS 7 V9.0Siemens
  • All versions < V9.0 SP3 UC04Affected
SIMATIC PCS 7 V9.1Siemens
  • All versions < V9.1 SP1Affected
SIMATIC WinCC V15 and earlierSiemens
  • All versions < V15 SP1 Update 7Affected
SIMATIC WinCC V16Siemens
  • All versions < V16 Update 5Affected
SIMATIC WinCC V17Siemens
  • All versions < V17 Update 2Affected
SIMATIC WinCC V7.4Siemens
  • All versions < V7.4 SP1 Update 19Affected
SIMATIC WinCC V7.5Siemens
  • All versions < V7.5 SP2 Update 5Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.