CVE-2011-4879: Input Validation
First published: Fri Feb 03 2012(Updated: )
miniweb.exe in 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 does not properly handle URIs beginning with a 0xfa character, which allows remote attackers to read data from arbitrary memory locations or cause a denial of service (application crash) via a crafted POST request.
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 |
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.osvdb.org/77384
- 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/71453
Frequently Asked Questions
What is the severity of CVE-2011-4879?
CVE-2011-4879 has a critical severity rating due to potential remote code execution vulnerabilities.
How do I fix CVE-2011-4879?
To address CVE-2011-4879, update all affected Siemens WinCC flexible versions and SIMATIC HMI panels to the latest patches.
What products are affected by CVE-2011-4879?
CVE-2011-4879 affects Siemens WinCC flexible versions 2004 through 2008, WinCC V11 before SP2 Update 1, and various SIMATIC HMI panels.
Is CVE-2011-4879 actively exploited?
As of the latest information, CVE-2011-4879 is considered a vulnerability that could be exploited, emphasizing the need for timely updates.
What are the consequences of CVE-2011-4879?
Exploitation of CVE-2011-4879 may allow an attacker to execute arbitrary code on affected systems, leading to unauthorized access or control.
- 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/tags
- agent/softwarecombine
- 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 2008/2008-sp1
- version/siemens simatic wincc flexible 2008/2008-sp2
- version/siemens simatic wincc flexible 2008/2007
- version/siemens simatic wincc flexible 2008/2005
- canonical/siemens simatic wincc
- version/siemens simatic wincc/v11
- version/siemens simatic wincc/v11-sp1
- 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