CVE-2021-34593
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| CODESYS | CODESYS V2 | Runtime Toolkit 32 bit full < V2.4.7.56 | affected |
| CODESYS | CODESYS V2 | PLCWinNT < V2.4.7.56 | affected |
Weaknesses
- CWE-755: CWE-755 Improper Handling of Exceptional Conditions
ADP Enrichment
CVE Program Container
Additional References
- https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16877&token=8faab0fc1e069f4edfca5d5aba8146139f67a175&download=
- http://seclists.org/fulldisclosure/2021/Oct/64
- http://packetstormsecurity.com/files/164716/CODESYS-2.4.7.0-Denial-Of-Service.html
- http://packetstormsecurity.com/files/165874/WAGO-750-8xxx-PLC-Denial-Of-Service-User-Enumeration.html
References
- https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16877&token=8faab0fc1e069f4edfca5d5aba8146139f67a175&download=
- http://seclists.org/fulldisclosure/2021/Oct/64
- http://packetstormsecurity.com/files/164716/CODESYS-2.4.7.0-Denial-Of-Service.html
- http://packetstormsecurity.com/files/165874/WAGO-750-8xxx-PLC-Denial-Of-Service-User-Enumeration.html
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