MicroLogix 1400 PLC Web Server Request Handling RCE

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.

Synopsis :

The remote programmable logic controller (PLC) device is affected by a
remote code execution vulnerability.

Description :

The firmware installed on the remote Allen-Bradley MicroLogix 1400
PLC device is a version prior to 15.004. It is, therefore, affected by
a stack-based buffer overflow condition due to improper validation of
user-supplied input when handling web requests. An unauthenticated,
remote attacker can exploit this to cause a denial of service or to
execute arbitrary code.

See also :


Solution :

Upgrade to the latest firmware version. Alternatively, block all ports
from external networks. See the vendor for further details.

Risk factor :

Critical / CVSS Base Score : 10.0

Family: SCADA

Nessus Plugin ID: 91385 ()

Bugtraq ID: 77333

CVE ID: CVE-2015-6490

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