#VU67353 OS Command Injection in Freecad - CVE-2021-45845

Vulnerability identifier: #VU67353

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-2021-45845

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Freecad
Other software / Other software solutions

Vendor: Freecadweb

Description

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

The vulnerability exists due to improper input validation within the Path Sanity Check script when processing FCStd documents. A remote attacker can pass specially crafted FCStd document to the application and execute arbitrary OS commands 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

Freecad: 0.19 - 0.19.4

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External links
https://tracker.freecad.org/view.php?id=4810
https://github.com/FreeCAD/FreeCAD/pull/5306

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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.