#VU75980 Deserialization of Untrusted Data in Siemens products - CVE-2023-30899

Cybersecurity Help s.r.o.

Published: 2023-05-10

Vulnerability identifier: #VU75980

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-30899

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vendor: Siemens

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data in the Management Server component. A remote user can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Siveillance Video 2021 R2: before 21.2

Siveillance Video 2022 R1: before 22.1

Siveillance Video Mobile Server V2022 R2: before 22.2

Siveillance Video 2022 R3: before 22.3

Siveillance Video 2023 R1: before 23.1

Siveillance Video 2020 R2: before 20.2

Siveillance Video 2020 R3: before 20.3

Siveillance Video 2021 R1: before 21.1

External links
https://cert-portal.siemens.com/productcert/pdf/ssa-789345.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

Multiple vulnerabilities in Siemens Siveillance Video Event and Management Servers