CVE-2021-40364

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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). The affected systems store sensitive information in log files. An attacker with access to the log files could publicly expose the information or reuse it to develop further attacks on the system.

Se ha identificado una vulnerabilidad en SIMATIC PCS 7 V8.2 (Todas las versiones), SIMATIC PCS 7 V9.0 (Todas las versiones anteriores a V9.0 SP3 UC04), SIMATIC PCS 7 V9.1 (Todas las versiones anteriores a V9. 1 SP1), SIMATIC WinCC V15 y anteriores (Todas las versiones anteriores a V15 SP1 Update 7), SIMATIC WinCC V16 (Todas las versiones anteriores a V16 Update 5), SIMATIC WinCC V17 (Todas las versiones anteriores a V17 Update 2), SIMATIC WinCC V7.4 (Todas las versiones anteriores a V7.4 SP1 Update 19), SIMATIC WinCC V7.5 (Todas las versiones anteriores a V7.5 SP2 Update 5). Los sistemas afectados almacenan información sensible en archivos de registro. Un atacante con acceso a los archivos de registro podría exponer públicamente la información o reutilizarla para desarrollar otros ataques al sistema

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-09-01 CVE Reserved
2021-11-09 CVE Published
2023-06-02 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-532: Insertion of Sensitive Information into Log File

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://cert-portal.siemens.com/productcert/pdf/ssa-840188.pdf	2023-04-11

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Siemens Search vendor "Siemens"		Simatic Pcs 7 Search vendor "Siemens" for product "Simatic Pcs 7"				<= 8.2 Search vendor "Siemens" for product "Simatic Pcs 7" and version " <= 8.2"		-		Affected
Siemens Search vendor "Siemens"		Simatic Pcs 7 Search vendor "Siemens" for product "Simatic Pcs 7"				>= 9.0 < 9.1 Search vendor "Siemens" for product "Simatic Pcs 7" and version " >= 9.0 < 9.1"		-		Affected
Siemens Search vendor "Siemens"		Simatic Pcs 7 Search vendor "Siemens" for product "Simatic Pcs 7"				9.1 Search vendor "Siemens" for product "Simatic Pcs 7" and version "9.1"		-		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				<= 7.4 Search vendor "Siemens" for product "Simatic Wincc" and version " <= 7.4"		-		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				7.5 Search vendor "Siemens" for product "Simatic Wincc" and version "7.5"		-		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				7.5 Search vendor "Siemens" for product "Simatic Wincc" and version "7.5"		sp1		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				7.5 Search vendor "Siemens" for product "Simatic Wincc" and version "7.5"		sp1_update1		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				7.5 Search vendor "Siemens" for product "Simatic Wincc" and version "7.5"		sp1_update2		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				7.5 Search vendor "Siemens" for product "Simatic Wincc" and version "7.5"		sp2		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				7.5 Search vendor "Siemens" for product "Simatic Wincc" and version "7.5"		sp2_update1		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				7.5 Search vendor "Siemens" for product "Simatic Wincc" and version "7.5"		sp2_update2		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				7.5 Search vendor "Siemens" for product "Simatic Wincc" and version "7.5"		sp2_update3		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				7.5 Search vendor "Siemens" for product "Simatic Wincc" and version "7.5"		sp2_update4		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				15 Search vendor "Siemens" for product "Simatic Wincc" and version "15"		-		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				16 Search vendor "Siemens" for product "Simatic Wincc" and version "16"		-		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				16 Search vendor "Siemens" for product "Simatic Wincc" and version "16"		update1		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				16 Search vendor "Siemens" for product "Simatic Wincc" and version "16"		update2		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				16 Search vendor "Siemens" for product "Simatic Wincc" and version "16"		update3		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				16 Search vendor "Siemens" for product "Simatic Wincc" and version "16"		update4		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				17 Search vendor "Siemens" for product "Simatic Wincc" and version "17"		-		Affected
Siemens Search vendor "Siemens"		Simatic Wincc Search vendor "Siemens" for product "Simatic Wincc"				17 Search vendor "Siemens" for product "Simatic Wincc" and version "17"		update1		Affected