#VU50637 Type conversion in Siemens products - CVE-2021-25175

Vulnerability identifier: #VU50637

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-2021-25175

CWE-ID: CWE-704

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Drawings SDK
Other software / Other software solutions
Teamcenter Visualization
Other software / Other software solutions
JT2Go
Server applications / Virtualization software

Vendor: Open Design Alliance
Siemens

Description

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

The vulnerability exists due to a memory corruption when rendering malformed DXF and DWG files. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Drawings SDK: before 2021.11

JT2Go: before 13.1.0.1

Teamcenter Visualization: before 13.1.0.1

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External links
https://cert-portal.siemens.com/productcert/pdf/ssa-663999.pdf
https://www.opendesign.com/security-advisories
https://www.zerodayinitiative.com/advisories/ZDI-21-246/
https://www.zerodayinitiative.com/advisories/ZDI-21-245/
https://www.zerodayinitiative.com/advisories/ZDI-21-244/

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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.