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CVE-2011-4508

CRITICAL
9.3
CVSS Severity Score
EPSS Score0.0930%
EPSS Percentile17.22th
PublishedFeb 3, 2012
Last ModifiedApr 29, 2026

Vulnerability Description

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.

Affected Platforms (CPE)

📦
Siemens

Wincc Flexible

= 2004
📦
Siemens

Wincc Flexible

= 2005
📦
Siemens

Wincc Flexible

= 2007
📦
Siemens

Wincc Flexible

= 2008
📦
Siemens

Wincc Flexible

= 2008
📦
Siemens

Wincc Flexible

= 2008
📦
Siemens

Wincc

<= v11
📦
Siemens

Wincc

= v11
📦
Siemens

Wincc

= v11
📦
Siemens

Simatic Hmi Panels

= comfort_panels
📦
Siemens

Simatic Hmi Panels

= mobile_panels
📦
Siemens

Simatic Hmi Panels

= mp
📦
Siemens

Simatic Hmi Panels

= op
📦
Siemens

Simatic Hmi Panels

= tp
📦
Siemens

Wincc Runtime Advanced

= v11
📦
Siemens

Wincc Flexible Runtime

All versions

References & Advisories

🔗 http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf
🔗 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.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf

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CVE-2011-450910.0

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