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Sygate Personal Firewall Fail-Safe Mechanism Bypass Vulnerability
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Secunia Advisory:
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SA11857
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Release Date:
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2004-06-16
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Popularity:
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9,599 views
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Critical:
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Less critical
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Impact:
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Security Bypass
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Where:
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Local system
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Solution Status:
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Unpatched
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| Software: | Sygate Personal Firewall 5.x
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Secunia CVSS-2 Score:
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Available in Secunia business solutions 
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Chew Keong TAN has reported a vulnerability in Sygate Personal Firewall Pro, which can be exploited by malicious, local users to bypass certain security restrictions.
The firewall service ("smc.exe") can reportedly be crashed by an unprivileged application by sending a specially crafted message to the ListView control in the GUI.
Normally, a security mechanism in Sygate Personal Firewall stops network traffic handled by a system in case the firewall service becomes unavailable. However, missing authentication within this mechanism can be exploited by a malicious program to disable the protection by passing specially crafted control codes to the kernel-space NDIS intermediate driver ("teefer.sys").
The vulnerability has been reported in version 5.5 Build 2525. Other versions may also be affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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