#VU55515 Stack-based buffer overflow in HMI3 Control Panel and Nexus Panel - CVE-2021-37164

Vulnerability identifier: #VU55515

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-2021-37164

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
HMI3 Control Panel
Hardware solutions / Medical equipment
Nexus Panel
Hardware solutions / Medical equipment

Vendor: Swisslog Healthcare

Description

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

The vulnerability exists due to a boundary error in the tcpTxThread function. 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

HMI3 Control Panel: All versions

Nexus Panel: before 7.2.5.7

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External links
https://www.swisslog-healthcare.com/en-us/customer-care/security-information/cve-disclosures#:~:text=CVE%20Disclosures%20%20%20%20Vulnerability%20Name%20,%20%20CVE-2021-37164%20%204%20more%20rows%20
https://www.armis.com/PwnedPiper
https://www.swisslog-healthcare.com
https://www.swisslog-healthcare.com/-/media/swisslog-healthcare/documents/customer-service/armis-documents/cve-2021-37164-bulletin---off-by-three-stack-overflow-in-tcptxthread.pdf?rev=daf615075c71484c8059c906872a51e6&hash=1FCC1A5D921E231D71E6B95A9AA8B741

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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.