CVE-2021-40359 vulnerability in Siemens Products
Published on November 9, 2021

A vulnerability has been identified in OpenPCS 7 V8.2 (All versions), OpenPCS 7 V9.0 (All versions < V9.0 Upd4), OpenPCS 7 V9.1 (All versions), SIMATIC BATCH V8.2 (All versions), SIMATIC BATCH V9.0 (All versions), SIMATIC BATCH V9.1 (All versions), SIMATIC NET PC Software V14 (All versions), SIMATIC NET PC Software V15 (All versions), SIMATIC NET PC Software V16 (All versions < V16 Update 6), SIMATIC NET PC Software V17 (All versions < V17 SP1), 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 Route Control V8.2 (All versions), SIMATIC Route Control V9.0 (All versions), SIMATIC Route Control V9.1 (All versions), 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). When downloading files, 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 unexpected critical files.

NVD

Weakness Type

What is a Directory traversal Vulnerability?

The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

CVE-2021-40359 has been classified to as a Directory traversal vulnerability or weakness.

Products Associated with CVE-2021-40359

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-40359 are published in these products:

Siemens Simatic Pcs 7

Siemens Simatic Wincc

Siemens Simatic Route Control

Siemens Simatic Net Pc

Siemens Simatic Batch

Siemens Simaticpcs 7

Affected Versions

Siemens OpenPCS 7 V8.2:

Version All versions is affected.

Siemens OpenPCS 7 V9.0:

Version All versions < V9.0 Upd4 is affected.

Siemens OpenPCS 7 V9.1:

Version All versions is affected.

Siemens SIMATIC BATCH V8.2:

Version All versions is affected.

Siemens SIMATIC BATCH V9.0:

Version All versions is affected.

Siemens SIMATIC BATCH V9.1:

Version All versions is affected.

Siemens SIMATIC NET PC Software V14:

Version All versions is affected.

Siemens SIMATIC NET PC Software V15:

Version All versions is affected.

Siemens SIMATIC NET PC Software V16:

Version All versions < V16 Update 6 is affected.

Siemens SIMATIC NET PC Software V17:

Version All versions < V17 SP1 is affected.

Siemens SIMATIC PCS 7 V8.2:

Version All versions is affected.

Siemens SIMATIC PCS 7 V9.0:

Version All versions < V9.0 SP3 UC04 is affected.

Siemens SIMATIC PCS 7 V9.1:

Version All versions < V9.1 SP1 is affected.

Siemens SIMATIC Route Control V8.2:

Version All versions is affected.

Siemens SIMATIC Route Control V9.0:

Version All versions is affected.

Siemens SIMATIC Route Control V9.1:

Version All versions is affected.

Siemens SIMATIC WinCC V15 and earlier:

Version All versions < V15 SP1 Update 7 is affected.

Siemens SIMATIC WinCC V16:

Version All versions < V16 Update 5 is affected.

Siemens SIMATIC WinCC V17:

Version All versions < V17 Update 2 is affected.

Siemens SIMATIC WinCC V7.4:

Version All versions < V7.4 SP1 Update 19 is affected.

Siemens SIMATIC WinCC V7.5:

Version All versions < V7.5 SP2 Update 5 is affected.

Exploit Probability

EPSS

0.47%

Percentile

64.10%