CVE-2021-34593

 

Published at: - 26-10-2021 12:15

Last modified: - 12-04-2022 08:05

Total changes: - 3

Description

In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16877&token=8faab0fc1e069f4edfca5d5aba8146139f67a175&download=
• http://packetstormsecurity.com/files/164716/CODESYS-2.4.7.0-Denial-Of-Service.html
• 20211029 SEC Consult SA-20211028-0 :: Denial of Service in CODESYS V2-Mailing List, Third Party Advisory
• http://packetstormsecurity.com/files/165874/WAGO-750-8xxx-PLC-Denial-Of-Service-User-Enumeration.html

 

Keywords

NVD

 

CVE-2021-34593

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures