#VU49507 Stack-based buffer overflow in Solid Edge - CVE-2020-26989

Vulnerability identifier: #VU49507

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-2020-26989

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Solid Edge
Client/Desktop applications / Other client software

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 when parsing of PAR files. A remote unauthenticated attacker can trigger stack-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 SE2021MP2

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External links
https://cert-portal.siemens.com/productcert/pdf/ssa-622830.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-979834.pdf

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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.