CVE-2021-33822 Information

Description

An issue was discovered on 4GEE ROUTER HH70VB Version HH70_E1_02.00_22. 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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi https://github.com/shekyan/slowhttptest

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5