Vulnerability identifier: #VU58237

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-40364

CWE-ID: CWE-532

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
SIMATIC PCS 7
Server applications / SCADA systems
Siemens SIMATIC WinCC
Server applications / SCADA systems

Vendor: Siemens

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to software stores sensitive information into log files. A local user can read the log files and gain access to sensitive data.

Mitigation
Install update from vendor's website.

Vulnerable software versions

SIMATIC PCS 7: 8.2 - 9.1

Siemens SIMATIC WinCC: 7.4 - 17

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External links
http://cert-portal.siemens.com/productcert/pdf/ssa-840188.pdf

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.