Sealevel Systems SeaConnect 370W Modbus/SeaMAX buffer overflow | CVE-2021-21961
NAME
Sealevel Systems SeaConnect 370W Modbus/SeaMAX buffer overflow
- Platforms Affected:
Sealevel Systems SeaConnect 370W Modbus/SeaMAX 1.3.34 - Risk Level:
10 - Exploitability:
Proof of Concept - Consequences:
Gain Access
DESCRIPTION
Sealevel Systems SeaConnect 370W Modbus/SeaMAX is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the LLMNR and NBNS functionalities. By sending a specially-crafted HTTP request, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS 3.0 Information
- Privileges Required: None
- User Interaction: None
- Scope: Changed
- Access Vector: Network
- Access Complexity: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Remediation Level: Official Fix
MITIGATION
Upgrade to the latest version of SeaConnect 370W Modbus/SeaMAX, available from the Sealevel Systems Web site. See References.
- Reference Link:
https://www.sealevel.com/product/370w-a-wifi-to-form-c-relays-digital-inputs-a-d-inputs-and-1-wire-bus-seaconnect-multifunction-io-edge-module-powered-by-seacloud/ - Reference Link:
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1389
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