9.8
CRITICAL
CVE-2021-31758
Tenda AC11 Stack Buffer Overflow Vulnerability
Description

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setportList allows attackers to execute arbitrary code on the system via a crafted post request.

INFO

Published Date :

May 7, 2021, 11:15 p.m.

Last Modified :

Nov. 21, 2024, 6:06 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-31758 has a 6 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-31758 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Tenda ac11_firmware
2 Tenda ac11
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-31758.

URL Resource
https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_2 Exploit Issue Tracking Third Party Advisory
https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_2 Exploit Issue Tracking Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

A curated collection of Proof of Concept (PoC) tools, scripts, and techniques designed for red team operations, penetration testing, and cybersecurity research. This repository focuses on providing practical resources for exploring vulnerabilities

attack cybersecurity exp hw penetration-testing poc red-team security-tools vulnerability-poc

Updated: 2 weeks, 5 days ago
1 stars 2 fork 2 watcher
Born at : Nov. 17, 2024, 11:53 a.m. This repo has been linked 414 different CVEs too.

这是一个每天同步Vulnerability-Wiki中docs-base中内容的项目

HTML

Updated: 1 month, 1 week ago
0 stars 0 fork 0 watcher
Born at : Sept. 20, 2024, 3:27 a.m. This repo has been linked 210 different CVEs too.

None

CSS HTML JavaScript

Updated: 10 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Feb. 2, 2024, 2:11 p.m. This repo has been linked 494 different CVEs too.

A Common Vulnerability PoC Knowledge Base一个普遍漏洞POC知识库

vulnerability

Updated: 2 months, 3 weeks ago
18 stars 6 fork 6 watcher
Born at : June 24, 2023, 3:12 p.m. This repo has been linked 232 different CVEs too.

一个漏洞POC知识库 目前数量 1000+

poc

Updated: 2 weeks, 3 days ago
3731 stars 734 fork 734 watcher
Born at : Feb. 20, 2022, 6:43 a.m. This repo has been linked 414 different CVEs too.

None

Updated: 3 weeks, 5 days ago
71 stars 14 fork 14 watcher
Born at : Oct. 13, 2021, 4:56 a.m. This repo has been linked 175 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-31758 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-31758 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_2
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    May. 10, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_2 No Types Assigned https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_2 Exploit, Issue Tracking, Third Party Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration AND OR *cpe:2.3:o:tenda:ac11_firmware:*:*:*:*:*:*:*:* versions up to (including) 02.03.01.104_cn OR cpe:2.3:h:tenda:ac11:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-31758 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-31758 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.80 }} 0.14%

score

0.81467

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
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