WAGO: Denial of Service Vulnerability in CODESYS Runtime 2.3
A Denial-of-Service Vulnerability was reported in CODESYS 2.3 Runtime. The CODESYS 2.3 Runtime is an essential component in several WAGO PLC's. All vulnerable PLCs are listed in chapter 'Affected Products'.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-34593US | medium5.0 | — | ||
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. Runn… | ||||
references
External citations — patches, advisories, analysis.
remediations (1)
- Mitigation
1. Use general security best practices to protect systems from local and network attacks. 2. Do not allow direct access to the device from untrusted networks. 3. Update to the latest firmware according to the table in chapter solutions. 4. Disable the CODESYS 2.3 port 2455.
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
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