Home/CVE/The HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP
CVE

CVE-2011-4508

The HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP

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 generates predictable authentication tokens for cookies, which makes it easier for remote attackers to bypass authentication via a crafted cookie.

HIGH · CVSS 9.3 EPSS 0.00418
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-287Improper Authentication
▤

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
▣

Scoring & Timeline

9.3
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:M/Au:N/C:C/I:C/A:C
Published to NVD03 Feb 2012 · 08:55 PM
⚑

Vendor Advisories

2
cisa-csafcisa-csaf-csaf_files-OT-white-2011-icsa-11-356-01
cisa-csafcisa-csaf-csaf_files-OT-white-2012-icsa-12-030-01a
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdfVendor Advisory
http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdfUS Government Resource
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