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Category:   Application (Generic)  >   Siemens SIMATIC WinCC Vendors:   Siemens
Siemens SIMATIC WinCC Bug in SIMATIC Logon Lets Remote Users Bypass Authentication on the Target System
SecurityTracker Alert ID:  1037826
SecurityTracker URL:  http://securitytracker.com/id/1037826
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Feb 15 2017
Impact:   User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Siemens SIMATIC WinCC. A remote user can bypass authentication.

A remote user with knowledge of a valid user name can exploit a flaw in the SIMATIC Logon component to bypass the application-level authentication on the target system.

Impact:   A remote user can bypass application-level authentication on the target system.
Solution:   The vendor has issued a fix (SIMATIC Logon V1.5 SP3 Update 2).

The vendor advisory is available at:

http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-931064.pdf

Vendor URL:  www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-931064.pdf (Links to External Site)
Cause:   Not specified
Underlying OS:  Windows (Any)

Message History:   None.


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