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TITLE:
Rockwell Automation MicroLogix Controller Security Issue and
Vulnerability

SECUNIA ADVISORY ID:
SA38246

VERIFY ADVISORY:
http://secunia.com/advisories/38246/

DESCRIPTION:
A security issue and a vulnerability have been reported in Rockwell
Automation MicroLogix controllers, which can be exploited by
malicious people to disclose sensitive information or bypass certain
security restrictions.

1) An error in the communication protocol can be exploited to
intercept and decipher the password and gain unauthorised access to
the product.

2) An error in the authentication mechanism can be exploited to gain
access to the product and potentially make unauthorised changes to
the product settings.

Successful exploitation requires access to the control system
communication network.

The security issue and the vulnerability are reported in MicroLogix
1000 (1761), MicroLogix 1100 (1763), MicroLogix 1200 (1762),
MicroLogix 1400 (1766), and MicroLogix 1500 (1764).

SOLUTION:
The vendor recommends to restrict access to the control system
communication network (please see the vendor's advisories for more
information).

Reportedly, the vendor is working on an update.

PROVIDED AND/OR DISCOVERED BY:
Eyal Udassin, C4 Security

ORIGINAL ADVISORY:
Rockwell Automation:
http://rockwellautomation.custhelp.com/app/answers/detail/a_id/65980
http://rockwellautomation.custhelp.com/app/answers/detail/a_id/65982

C4 Security:
http://www.scada-security.com/vulnerabilities/rockwellautomation1.html

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About:
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vulnerabilities.

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http://secunia.com/advisories/about_secunia_advisories/


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Secunia NEVER sends attached files with advisories.
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