#VU54883 Heap-based buffer overflow in Siemens products - CVE-2021-34327

Vulnerability identifier: #VU54883

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-34327

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Solid Edge
Client/Desktop applications / Other client software
JT2Go
Server applications / Virtualization software
Teamcenter Visualization
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 plmxmlAdapterSE70.dll library when parsing ASM files. A remote attacker can trigger 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 updates from vendor's website.

Vulnerable software versions

Solid Edge: before SE2021MP5

JT2Go: before 13.2

Teamcenter Visualization: before 13.2

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External links
https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-173615.pdf
https://www.zerodayinitiative.com/advisories/ZDI-21-865/

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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.