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CVE-2021-33541

nvd nist
Published: Jun 25, 2021Modified: Nov 21, 2024

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

Phoenix Contact Classic Line Controllers ILC1x0 and ILC1x1 in all versions/variants are affected by a Denial-of-Service vulnerability. The communication protocols and device access do not feature authentication measures. Remote attackers can use specially crafted IP packets to cause a denial of service on the PLC's network communication module. A successful attack stops all network communication. To restore the network connectivity the device needs to be restarted. The automation task is not affected.

Affected (2)

Phoenixcontact
2 products
Ilc1x0 Firmware
Ilc1x1 Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Ilc1x0 Firmware
All versions
Running on/withPlatform Versions
Phoenixcontact
Ilc1x0
All versions
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Ilc1x1 Firmware
All versions
Running on/withPlatform Versions
Phoenixcontact
Ilc1x1
All versions

Related CWEs

CWE-770
Allocation of Resources Without Limits or Throttling
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

References (2)

Source: info@cert.vde.com
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.