7.7
CWE
22
Advisory Published
Updated

CVE-2021-40359: Path Traversal

First published: Tue Nov 09 2021(Updated: )

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.

Credit: productcert@siemens.com

Affected SoftwareAffected VersionHow to fix
Siemens Simatic Batch=8.2
Siemens Simatic Batch=8.2-upd_9
Siemens Simatic Batch=9.0
Siemens Simatic Batch=9.0-sp1
Siemens Simatic Batch=9.0-sp1_update_1
Siemens Simatic Batch=9.0-sp1_update_2
Siemens Simatic Batch=9.0-sp1_update_3
Siemens Simatic Batch=9.0-sp1_update_4
Siemens Simatic Batch=9.1
Siemens Simatic Net Pc=14
Siemens Simatic Net Pc=15
Siemens Simatic Net Pc=16
Siemens Simatic Net Pc=16-update1
Siemens Simatic Net Pc=17
Siemens Simatic Route Control=8.2
Siemens Simatic Route Control=9.0
Siemens Simatic Route Control=9.1
Siemens Simatic WinCC<=7.4
Siemens Simatic WinCC=7.5
Siemens Simatic WinCC=7.5
Siemens Simatic WinCC=7.5-sp1
Siemens Simatic WinCC=7.5-sp1_update1
Siemens Simatic WinCC=7.5-sp1_update2
Siemens Simatic WinCC=7.5-sp2
Siemens Simatic WinCC=7.5-sp2_update1
Siemens Simatic WinCC=7.5-sp2_update2
Siemens Simatic WinCC=7.5-sp2_update3
Siemens Simatic WinCC=7.5-sp2_update4
Siemens Simatic WinCC=15
Siemens Simatic WinCC=16
Siemens Simatic WinCC=16-update1
Siemens Simatic WinCC=16-update2
Siemens Simatic WinCC=16-update3
Siemens Simatic WinCC=16-update4
Siemens Simatic WinCC=17
Siemens Simatic WinCC=17-update1
Siemens Simaticpcs 7<=8.2
Siemens Simaticpcs 7>=9.0<9.1
Siemens Simaticpcs 7=9.1

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Frequently Asked Questions

  • What is the vulnerability ID for this OpenPCS 7 vulnerability?

    The vulnerability ID for this OpenPCS 7 vulnerability is CVE-2021-40359.

  • Which versions of OpenPCS 7 are affected by this vulnerability?

    All versions of OpenPCS 7 V8.2, all versions of OpenPCS 7 V9.0 up to V9.0 Upd4, and all versions of OpenPCS 7 V9.1 are affected.

  • What is the severity rating of CVE-2021-40359?

    The severity rating of CVE-2021-40359 is 7.7 (high).

  • How can I fix the OpenPCS 7 vulnerability?

    Siemens has released security updates to address this vulnerability. Please refer to the Siemens Security Advisory SSA-840188 for more information.

  • Where can I find more information about this OpenPCS 7 vulnerability?

    You can find more information about this OpenPCS 7 vulnerability in the Siemens Security Advisory SSA-840188.

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