[NT] Norton Insufficient Validation of Driver Input Buffer (SymEvent)

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Norton Insufficient Validation of Driver Input Buffer (SymEvent)
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SUMMARY

Norton Personal Firewall is a desktop firewall application produced by
<http://www.symantec.com/> Symantec.

Norton Personal Firewall crashes when arbitrary data is sent to its
SymEvent driver.

DETAILS

Vulnerable Systems:
* 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

Norton insufficiently protects its driver '\Device\SymEvent' 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.

Proof of concept:

<http://www.matousec.com/downloads/windows-personal-firewall-analysis/BTP00011P002NF.zip> http://www.matousec.com/downloads/windows-personal-firewall-analysis/BTP00011P002NF.zip

Disclosure Timeline:
* 2006-09-16 - Vulnerability confirmed by popular information sources
* 2006-09-15 - Advisory released
* 2006-09-15 - Vendor notification


ADDITIONAL INFORMATION

The information has been provided by Matousec.
The original article can be found at:
<http://www.matousec.com/info/advisories/Norton-Insufficient-validation-of-SymEvent-driver-input-buffer.php> http://www.matousec.com/info/advisories/Norton-Insufficient-validation-of-SymEvent-driver-input-buffer.php



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