CVEvulnerability
CVE-2021-33824
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-06-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-400
Description
An issue was discovered on MOXA Mgate MB3180 Version 2.1 Build 18113012. Attackers can use slowhttptest tool to send incomplete HTTP request, which could make server keep waiting for the packet to finish the connection, until its resource exhausted. Then the web server is denial-of-service.
Affected configurations
• moxa mgate mb3180 firmware 2.1
Related
Weakness · CWE (1)
- CWE-400 Uncontrolled Resource Consumption weakness
References
- https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33824.md Exploit, Third Party Advisory
- https://github.com/shekyan/slowhttptest Third Party Advisory
- https://www.moxa.com/en/products/industrial-edge-connectivity/protocol-gateways/modbus-tcp-gateways/mgate-mb3180-mb3280-mb3480-series Product, Vendor Advisory
- https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33824.md Exploit, Third Party Advisory
- https://github.com/shekyan/slowhttptest Third Party Advisory
- https://www.moxa.com/en/products/industrial-edge-connectivity/protocol-gateways/modbus-tcp-gateways/mgate-mb3180-mb3280-mb3480-series Product, Vendor Advisory