#VU56916 Use-after-free in Solid Edge SE2021 - CVE-2021-41535

Vulnerability identifier: #VU56916

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-2021-41535

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Solid Edge SE2021
Server applications / SCADA systems

Vendor: Siemens

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error while parsing OBJ files. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Solid Edge SE2021: before SE2021MP8

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External links
https://cert-portal.siemens.com/productcert/pdf/ssa-728618.pdf
https://www.zerodayinitiative.com/advisories/ZDI-21-1119/

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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.