Vulnerability Details : CVE-2021-33818
An issue was discovered in UniFi Protect G3 FLEX Camera Version UVC.v4.30.0.67. 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.
Vulnerability category: Denial of service
Products affected by CVE-2021-33818
- cpe:2.3:o:ui:camera_g3_flex_firmware:uvc.v4.30.0.67:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-33818
0.21%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 58 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-33818
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-33818
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-33818
-
https://github.com/shekyan/slowhttptest
GitHub - shekyan/slowhttptest: Application Layer DoS attack simulatorThird Party Advisory
-
https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33818.md
CVE-POC/CVE-2021-33818.md at master · Jian-Xian/CVE-POC · GitHubExploit;Third Party Advisory
-
https://store.ui.com/collections/unifi-protect-cameras/products/unifi-video-g3-flex-camera
Camera G3 Flex – Ubiquiti Inc.Product;Vendor Advisory
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