CVE-2011-4508
First published: Fri Feb 03 2012(Updated: )
The HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime generates predictable authentication tokens for cookies, which makes it easier for remote attackers to bypass authentication via a crafted cookie.
Credit: cret@cert.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens SIMATIC WinCC flexible 2008 | =2004 | |
| Siemens SIMATIC WinCC flexible 2008 | =2008 | |
| Siemens SIMATIC WinCC flexible 2008 | =2008-sp1 | |
| Siemens SIMATIC WinCC flexible 2008 | =2008-sp2 | |
| Siemens SIMATIC WinCC flexible 2008 | =2007 | |
| Siemens SIMATIC WinCC flexible 2008 | =2005 | |
| Siemens Simatic WinCC | =v11 | |
| Siemens Simatic WinCC | =v11-sp1 | |
| Siemens Simatic WinCC | <=v11 | |
| Siemens SIMATIC HMI Panels | =tp | |
| Siemens SIMATIC HMI Panels | =op | |
| Siemens SIMATIC HMI Panels | =mobile_panels | |
| Siemens SIMATIC HMI Panels | =comfort_panels | |
| Siemens SIMATIC HMI Panels | =mp | |
| Siemens SIMATIC WinCC Runtime Advanced | =v11 | |
| Siemens SIMATIC WinCC flexible Runtime |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2011-4508?
CVE-2011-4508 is categorized as a high-severity vulnerability due to its potential to allow unauthorized access to sensitive systems.
How do I fix CVE-2011-4508?
To mitigate CVE-2011-4508, users should apply the latest service packs or updates specifically released by Siemens for the affected WinCC and HMI products.
Which versions are affected by CVE-2011-4508?
CVE-2011-4508 affects Siemens WinCC flexible versions 2004, 2005, 2007, 2008 before SP3, as well as WinCC V11 before SP2 Update 1, among other products.
What kind of attack does CVE-2011-4508 enable?
CVE-2011-4508 allows attackers to exploit predictable authentication tokens to gain unauthorized access to the HMI web server.
Is there a workaround for CVE-2011-4508?
While the recommended solution is to apply the software updates, restricting network access to the affected systems can serve as a temporary workaround for CVE-2011-4508.
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- canonical/siemens simatic wincc flexible 2008
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- version/siemens simatic hmi panels/mobile_panels
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- canonical/siemens simatic wincc runtime advanced
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