Vulnerability identifier: #VU60339

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21969

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SeaConnect 370W
Hardware solutions / Firmware

Vendor: Sealevel Systems

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the HandleSeaCloudMessage functionality within the json payload key value. A remote attacker can perform a man-in-the-middle attack, trigger out-of-bounds write and execute arbitrary code on the target 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-2021-1396

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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.