CVE-2011-4875: Buffer Overflow
First published: Fri Feb 03 2012(Updated: )
Stack-based buffer overflow in HmiLoad in the runtime loader 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, when Transfer Mode is enabled, allows remote attackers to execute arbitrary code via vectors related to Unicode strings.
Credit: cret@cert.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens SIMATIC WinCC flexible 2008 | =2004 | |
| Siemens SIMATIC WinCC flexible 2008 | =2005 | |
| Siemens SIMATIC WinCC flexible 2008 | =2007 | |
| Siemens SIMATIC WinCC flexible 2008 | =2008 | |
| Siemens WinCC | =v11 | |
| Siemens SIMATIC HMI Panels | =comfort_panels | |
| Siemens SIMATIC HMI Panels | =mobile_panels | |
| Siemens SIMATIC HMI Panels | =mp | |
| Siemens SIMATIC HMI Panels | =op | |
| Siemens SIMATIC HMI Panels | =tp | |
| Siemens SIMATIC WinCC Runtime Advanced | =v11 | |
| Siemens SIMATIC WinCC flexible Runtime |
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Reference Links
- http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf
- http://www.exploit-db.com/exploits/18166
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02.pdf
- http://www.osvdb.org/77380
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02A.pdf
- http://aluigi.org/adv/winccflex_1-adv.txt
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71449
Frequently Asked Questions
What is the severity of CVE-2011-4875?
CVE-2011-4875 has been classified with a high severity level due to the potential for remote code execution through a stack-based buffer overflow.
How do I fix CVE-2011-4875?
To fix CVE-2011-4875, apply the latest security patches or updates provided by Siemens for the affected WinCC flexible and HMI Panel software.
What software versions are affected by CVE-2011-4875?
CVE-2011-4875 affects Siemens WinCC flexible versions 2004, 2005, 2007, 2008, WinCC V11, and various SIMATIC HMI panels.
Can CVE-2011-4875 be exploited remotely?
Yes, CVE-2011-4875 can be exploited remotely if the Transfer Mode is enabled, allowing attackers to execute arbitrary code.
What impact could CVE-2011-4875 have on my system?
Exploitation of CVE-2011-4875 could lead to unauthorized access and control over the affected systems, resulting in significant operational risks.
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