Improper input validation in Siemens Simatic Hmi Panels
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 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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 8.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.121 (96.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.125 · newest: 0.121 · change: -0.004
Affected products
- Siemens Simatic Hmi Panels — versions comfort_panels, mobile_panels, mp
- Siemens Wincc — versions v11
- Siemens Wincc Flexible — versions 2004, 2005, 2007
- Siemens Wincc Flexible Runtime
- Siemens Wincc Runtime Advanced — versions v11
Weakness classification (CWE)
References
- www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02.pdf
- www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02A.pdf
- www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_… (Vendor Advisory)
- www.exploit-db.com/exploits/18166 (exploit)
- aluigi.org/adv/winccflex_1-adv.txt
- www.osvdb.org/77384 (vdb-entry)
- exchange.xforce.ibmcloud.com/vulnerabilities/71453 (vdb-entry)
- www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf (US Government Resource)