#VU97161 Heap-based buffer overflow in Siemens products - CVE-2024-33698

Vulnerability identifier: #VU97161

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-33698

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SIMATIC Information Server
Hardware solutions / Firmware
SIMATIC PCS neo
Web applications / Other software
SINEC NMS
Server applications / Remote management servers, RDP, SSH
Totally Integrated Automation Portal (TIA Portal)
Other software / Other software solutions

Vendor: Siemens

Description

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

The vulnerability exists due to a boundary error in the integrated UMC component. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation
Install update from vendor's website.

Vulnerable software versions

SIMATIC Information Server: 2022 - 2024

SIMATIC PCS neo: 4.0 - 5.0

SINEC NMS: All versions

Totally Integrated Automation Portal (TIA Portal): 16 - 19

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External links
https://cert-portal.siemens.com/productcert/html/ssa-039007.html
https://www.tenable.com/security/research/tra-2024-37-0
https://www.cisa.gov/news-events/ics-advisories/icsa-24-256-03

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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