CVE-2011-4508

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.3 UNKNOWN
NETWORK
MEDIUM
AV:N/AC:M/Au:N/C:C/I:C/A:C
certccCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 41%
VendorProductVersion
siemenswincc_flexible_runtime
*
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
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