CVE-2011-4877: Input Validation
First published: Fri Feb 03 2012(Updated: )
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 cause a denial of service (application crash) by sending crafted data over TCP.
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 | =2007 | |
| Siemens SIMATIC WinCC flexible 2008 | =2005 | |
| 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 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf
- http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.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/77382
- 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/71451
Frequently Asked Questions
What is the severity of CVE-2011-4877?
CVE-2011-4877 is rated as a medium severity vulnerability.
How do I fix CVE-2011-4877?
To fix CVE-2011-4877, update your Siemens WinCC software to the latest version or disable Transfer Mode in the runtime loader settings.
Which Siemens products are affected by CVE-2011-4877?
CVE-2011-4877 affects Siemens WinCC flexible 2004-2008, WinCC V11, and various SIMATIC HMI panels.
What type of vulnerability is CVE-2011-4877?
CVE-2011-4877 is a remote code execution vulnerability that can be exploited when Transfer Mode is enabled.
Can CVE-2011-4877 be exploited remotely?
Yes, CVE-2011-4877 can be exploited remotely by attackers if the Transfer Mode feature is enabled.
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/weakness
- agent/author
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/description
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-historical
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/siemens
- canonical/siemens simatic wincc flexible 2008
- version/siemens simatic wincc flexible 2008/2004
- version/siemens simatic wincc flexible 2008/2008
- version/siemens simatic wincc flexible 2008/2007
- version/siemens simatic wincc flexible 2008/2005
- canonical/siemens simatic wincc
- version/siemens simatic wincc/v11
- canonical/siemens simatic hmi panels
- version/siemens simatic hmi panels/tp
- version/siemens simatic hmi panels/op
- version/siemens simatic hmi panels/mobile_panels
- version/siemens simatic hmi panels/comfort_panels
- version/siemens simatic hmi panels/mp
- canonical/siemens simatic wincc runtime advanced
- version/siemens simatic wincc runtime advanced/v11
- canonical/siemens simatic wincc flexible runtime