CVE-2011-4876: Path Traversal
First published: Fri Feb 03 2012(Updated: )
Directory traversal vulnerability 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, read, create, modify, or delete arbitrary files via a .. (dot dot) in a string.
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://secunia.com/advisories/46997
- http://www.osvdb.org/77381
- http://www.exploit-db.com/exploits/18166
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02.pdf
- 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/71450
Frequently Asked Questions
What is the severity of CVE-2011-4876?
CVE-2011-4876 is considered a high severity vulnerability due to its potential for directory traversal attacks.
How do I fix CVE-2011-4876?
To address CVE-2011-4876, it is recommended to apply the appropriate patches provided by Siemens for the affected software versions.
What are the affected software versions for CVE-2011-4876?
CVE-2011-4876 affects Siemens WinCC flexible 2004, 2005, 2007, 2008, WinCC V11, and various SIMATIC HMI panels.
What type of vulnerability is CVE-2011-4876?
CVE-2011-4876 is a directory traversal vulnerability that allows attackers to access restricted files on the server.
Can CVE-2011-4876 impact industrial control systems?
Yes, CVE-2011-4876 can significantly impact industrial control systems that utilize affected Siemens software, leading to potential compromise.
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