U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-33818 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33818.md Exploit  Third Party Advisory 
https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33818.md Exploit  Third Party Advisory 
https://github.com/shekyan/slowhttptest Third Party Advisory 
https://github.com/shekyan/slowhttptest Third Party Advisory 
https://store.ui.com/collections/unifi-protect-cameras/products/unifi-video-g3-flex-camera Product  Vendor Advisory 
https://store.ui.com/collections/unifi-protect-cameras/products/unifi-video-g3-flex-camera Product  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:ui:camera_g3_flex_firmware:uvc.v4.30.0.67:*:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:ui:camera_g3_flex:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-33818
NVD Published Date:
06/18/2021
NVD Last Modified:
11/21/2024
Source:
MITRE