Home/CVE/miniweb.exe in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA po
CVE

CVE-2011-4879

miniweb.exe in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA po

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.

HIGH · CVSS 8.5 EPSS 0.32647
Act now
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 3% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

6
siemens wincc flexibleall versions
siemens wincc<= v11
siemens winccall versions
siemens simatic hmi panelsall versions
siemens wincc runtime advancedall versions
siemens wincc flexible runtimeall versions
⚠

Public Exploits & PoCs

2
dosSiemens SIMATIC WinCC Flexible (Runtime) - Multiple Vulnerabilitiesverified
pocwww.exploit-db.com · 18166www.exploit-db.com
▣

Scoring & Timeline

8.5
HIGH · CVSS v2 (legacy) · cret@cert.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:N/A:C
Published to NVD03 Feb 2012 · 08:55 PM
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2012-icsa-12-030-01a
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://aluigi.org/adv/winccflex_1-adv.txt
http://www.osvdb.org/77384
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdfVendor Advisory
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://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdfUS Government Resource
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