CVE-2011-4508

Name: CVE-2011-4508
Creator: NVD / NIST
Published: 2012-02-03T20:55:01.25+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.12%

Last modified Jun 16, 2026

CVE-2011-4508 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.12% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

3.12%

86.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions	Update
Siemens	Wincc Flexible	2004	—
Siemens	Wincc Flexible	2005	—
Siemens	Wincc Flexible	2007	—
Siemens	Wincc Flexible	2008	—
Siemens	Wincc	<= v11	Sp2
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

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
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

Timeline

Published: Feb 3, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-4508?

How severe is CVE-2011-4508?

Severity scoring for CVE-2011-4508 is pending analysis. The EPSS model estimates a 3.12% probability of exploitation in the next 30 days.

How do I fix CVE-2011-4508?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-4508?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST