Symantec Norton Insufficient validation of 'SymEvent' driver input buffer

2006.09.20
Risk: Low
Local: Yes
Remote: No
CWE: CWE-399


Ogólna skala CVSS: 4.9/10
Znaczenie: 6.9/10
Łatwość wykorzystania: 3.9/10
Wymagany dostęp: Lokalny
Złożoność ataku: Niska
Autoryzacja: Nie wymagana
Wpływ na poufność: Brak
Wpływ na integralność: Brak
Wpływ na dostępność: Pełny

Hello, I would like to inform you about a vulnerability in Norton Personal Firewall. Description: Norton insufficiently protects its driver 'DeviceSymEvent' against a manipulation by malicious applications and it fails to validate its input buffer. It is possible to open this driver and send arbitrary data to it, which are implicitly believed to be valid. It is possible to assemble the data in the input buffer such that the driver performs an invalid memory operation and crashes the whole operating system. Further impacts of this bug were not examined. Vulnerable software: * Norton Personal Firewall 2006 version 9.1.0.33 * probably all versions of Norton Personal Firewall 2006 and Norton Internet Security 2006 * possibly older versions of Norton Personal Firewall and Norton Internet Security More details and a proof of concept including source code is available here: http://www.matousec.com/info/advisories/Norton-Insufficient-validation-o f-SymEvent-driver-input-buffer.php Regards, -- David Matousek Founder and Chief Representative of Matousec - Transparent security http://www.matousec.com/


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