CVE-2021-34593

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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16877&token=8faab0fc1e069f4edfca5d5aba8146139f67a175&download=	Vendor Advisory
http://packetstormsecurity.com/files/164716/CODESYS-2.4.7.0-Denial-Of-Service.html	Exploit Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2021/Oct/64	Mailing List Third Party Advisory
http://packetstormsecurity.com/files/165874/WAGO-750-8xxx-PLC-Denial-Of-Service-User-Enumeration.html	Exploit Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:codesys:plcwinnt::::::::
	cpe:2.3:a:codesys:runtime_toolkit:::::::x86:*

Information

Published : 2021-10-26 03:15

Updated : 2022-04-12 11:05

NVD link : CVE-2021-34593

Mitre link : CVE-2021-34593

JSON object : View

CWE

CWE-755

Improper Handling of Exceptional Conditions

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Products Affected

codesys

plcwinnt
runtime_toolkit

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