CVE-2011-4509: Critical severity siemens simatic wincc flexible 2008 vulnerability
The HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime has an improperly selected default password for the administrator account, which makes it easier for remote attackers to obtain access via a brute-force approach involving many HTTP requests.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2011-4509?
CVE-2011-4509 has been classified as a critical vulnerability due to the presence of an improperly selected default password for the administrator account.
How do I fix CVE-2011-4509?
To mitigate CVE-2011-4509, change the default administrator password immediately on affected Siemens WinCC products.
Which Siemens products are affected by CVE-2011-4509?
CVE-2011-4509 affects Siemens WinCC flexible 2004, 2005, 2007, 2008, WinCC V11, and various SIMATIC HMI panels.
What could happen if CVE-2011-4509 is exploited?
Exploitation of CVE-2011-4509 could allow attackers to gain unauthorized access to critical control systems.
Is there a patch for CVE-2011-4509 available from Siemens?
Siemens recommends reviewing their security advisories for guidance on remediation measures concerning CVE-2011-4509.