#VU60534 Information disclosure in SIMATIC PCS 7 and Siemens SIMATIC WinCC


Published: 2022-02-11

Vulnerability identifier: #VU60534

Vulnerability risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-40360

CWE-ID: CWE-200

Exploitation vector: Network

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 remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A remote authenticated attacker can brute force the password hash and use it to login to the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SIMATIC PCS 7: 8.0 - 9.1

Siemens SIMATIC WinCC: 7.0 - 17


External links
http://cert-portal.siemens.com/productcert/pdf/ssa-914168.pdf


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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


Latest bulletins with this vulnerability