#VU67327 Out-of-bounds write in Parasolid and Simcenter Femap - CVE-2022-39154

Vulnerability identifier: #VU67327

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/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-2022-39154

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Parasolid
Client/Desktop applications / Other client software
Simcenter Femap
Server applications / SCADA systems

Vendor: Siemens

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error while parsing specially crafted X_T files. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Parasolid: 33.1.262 - 35.0.161

Simcenter Femap: before 2022.1.3

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External links
https://cert-portal.siemens.com/productcert/txt/ssa-518824.txt
https://www.zerodayinitiative.com/advisories/ZDI-22-1247/

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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.