Intrusion Prevention

Siemens.S7-300.S7-400.S7comm.PLCs.DoS

Description

This indicates an attack attempt against a Security Bypass Vulnerability on Siemens S7-300 and S7-400
The vulnerability is due to an error when the vulnerable software handles a maliciously crafted request. A remote attacker may be able to exploit this to cause a denial of service condition on the affected system.

Affected Products

Siemens S7-300
Siemens S7-400

Impact

Denial of Service: Remote attackers can crash vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
http://support.automation.siemens.com/