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Unscored CVE-2021-40363 EUVD-2021-27541GHSA-wg4m-r562-77pw

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 versio…

Published Feb 9, 2022 · Updated Aug 4, 2024 · Assigned by siemens

Description

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component stores the credentials of a local system account in a potentially publicly accessible project file using an outdated cipher algorithm.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 products

VendorProductAffectedFixed
Siemens SIMATIC PCS 7 V8.2 All versions —
Siemens SIMATIC PCS 7 V9.0 All versions —
Siemens SIMATIC PCS 7 V9.1 All versions < V9.1 SP1 —
Siemens SIMATIC WinCC V15 and earlier All versions < V15 SP1 Update 7 —
Siemens SIMATIC WinCC V16 All versions < V16 Update 5 —
Siemens SIMATIC WinCC V17 All versions < V17 Update 2, All versions <= V17 Update 4 —
Siemens SIMATIC WinCC V7.4 All versions < V7.4 SP1 Update 19 —
Siemens SIMATIC WinCC V7.5 All versions < V7.5 SP2 Update 6 —

Advisories 2

References