Vulnerability identifier: #VU77319

Vulnerability risk: Low

CVSSv3.1: 3.4 [CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28829

CWE-ID: CWE-477

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
SIMATIC NET PC Software
Server applications / SCADA systems
SIMATIC PCS 7
Server applications / SCADA systems
SINAUT Software ST7sc
Server applications / SCADA systems
Siemens SIMATIC WinCC
Server applications / SCADA systems

Vendor: Siemens

Description

The vulnerability allows a remote user to compromise the target system.

The vulnerability exists due to due to use of obsolete function. A remote administrator on the local network can bypass authentication process on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SIMATIC NET PC Software: 14 - 15

SIMATIC PCS 7: 8.2 - 9.1

SINAUT Software ST7sc: All versions

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External links
http://cert-portal.siemens.com/productcert/pdf/ssa-508677.pdf

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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