7.5
HIGH CVSS 3.1
CVE-2021-29241
CODESYS Gateway NULL Pointer Denial of Service
Description

CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).

INFO

Published Date :

May 3, 2021, 2:15 p.m.

Last Modified :

Nov. 21, 2024, 6 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2021-29241 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 Codesys gateway
2 Codesys development_system
3 Codesys edge_gateway
4 Codesys control_for_beaglebone_sl
5 Codesys control_for_empc-a\/imx6_sl
6 Codesys control_for_iot2000_sl
7 Codesys control_for_linux_sl
8 Codesys control_for_pfc100_sl
9 Codesys control_for_pfc200_sl
10 Codesys control_for_raspberry_pi_sl
11 Codesys control_runtime_system_toolkit
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
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-2021-29241.

URL Resource
https://customers.codesys.com/index.php Permissions Required Vendor Advisory
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&download= Vendor Advisory
https://www.codesys.com/security/security-reports.html Vendor Advisory
https://customers.codesys.com/index.php Permissions Required Vendor Advisory
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&download= Vendor Advisory
https://www.codesys.com/security/security-reports.html Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-29241 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-2021-29241 weaknesses.

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).

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

The following list is the news that have been mention CVE-2021-29241 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-29241 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://customers.codesys.com/index.php
    Added Reference https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&download=
    Added Reference https://www.codesys.com/security/security-reports.html
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Apr. 01, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:codesys:control_for_beaglebone_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_empc-a\/imx6_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_iot2000_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_linux_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_pfc100_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.16.0 *cpe:2.3:a:codesys:control_for_pfc200_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.16.0 *cpe:2.3:a:codesys:control_for_raspberry_pi_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_runtime_system_toolkit:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.17.0 *cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.17.0 *cpe:2.3:a:codesys:edge_gateway:*:*:*:*:*:windows:*:* versions from (including) 3.0 up to (excluding) 3.5.17.0 *cpe:2.3:a:codesys:edge_gateway:*:*:*:*:*:linux:*:* versions from (including) 3.0 up to (excluding) 4.1.0.0 *cpe:2.3:a:codesys:gateway:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.17.0 OR *cpe:2.3:a:codesys:control_for_beaglebone_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_empc-a\/imx6_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_iot2000_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_linux_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_pfc100_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.16.0 *cpe:2.3:a:codesys:control_for_pfc200_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.16.0 *cpe:2.3:a:codesys:control_for_raspberry_pi_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_runtime_system_toolkit:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.16.70 *cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.16.70 *cpe:2.3:a:codesys:edge_gateway:*:*:*:*:*:windows:*:* versions from (including) 3.0 up to (excluding) 3.5.16.70 *cpe:2.3:a:codesys:edge_gateway:*:*:*:*:*:linux:*:* versions from (including) 3.0 up to (excluding) 4.1.0.0 *cpe:2.3:a:codesys:gateway:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.16.70
  • CVE Modified by [email protected]

    Dec. 16, 2021

    Action Type Old Value New Value
    Changed Description CODESYS Gateway 3 before 3.5.17.0 has a NULL pointer dereference that may result in a denial of service (DoS). CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).
  • Initial Analysis by [email protected]

    May. 13, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://customers.codesys.com/index.php No Types Assigned https://customers.codesys.com/index.php Permissions Required, Vendor Advisory
    Changed Reference Type https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&download= No Types Assigned https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&download= Vendor Advisory
    Changed Reference Type https://www.codesys.com/security/security-reports.html No Types Assigned https://www.codesys.com/security/security-reports.html Vendor Advisory
    Added CWE NIST CWE-476
    Added CPE Configuration OR *cpe:2.3:a:codesys:control_for_beaglebone_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_empc-a\/imx6_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_iot2000_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_linux_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_for_pfc100_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.16.0 *cpe:2.3:a:codesys:control_for_pfc200_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.16.0 *cpe:2.3:a:codesys:control_for_raspberry_pi_sl:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 4.0.1.0 *cpe:2.3:a:codesys:control_runtime_system_toolkit:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.17.0 *cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.17.0 *cpe:2.3:a:codesys:edge_gateway:*:*:*:*:*:windows:*:* versions from (including) 3.0 up to (excluding) 3.5.17.0 *cpe:2.3:a:codesys:edge_gateway:*:*:*:*:*:linux:*:* versions from (including) 3.0 up to (excluding) 4.1.0.0 *cpe:2.3:a:codesys:gateway:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (excluding) 3.5.17.0
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.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

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

0.56 }} -0.08%

score

0.67321

percentile