Vulnerability identifier: #VU60338

Vulnerability risk: High

CVSSv3.1: 7.8 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21962

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SeaConnect 370W
Hardware solutions / Firmware

Vendor: Sealevel Systems

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 OTA Update u-download functionality. A remote attacker can perform a man-in-the-middle attack, trigger heap-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

SeaConnect 370W: 1.3.34

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External links
http://talosintelligence.com/vulnerability_reports/TALOS-2021-1390

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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.