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Cisco IOS IPS Security Bypass and Denial of Service
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Secunia Advisory:
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SA24142
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Release Date:
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2007-02-14
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Last Update:
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2007-02-16
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Popularity:
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9,902 views
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Critical:
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Moderately critical
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Impact:
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Security Bypass
DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| OS: | Cisco IOS 12.x
Cisco IOS R12.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:
Two vulnerabilities have been reported in Cisco IOS, which can be exploited by malicious people to bypass certain security restrictions or cause a DoS (Denial of Service).
1) Cisco IOS IPS signatures using regular expressions may not correctly identify malicious traffic within fragmented IP packets. This can be exploited to bypass the detection mechanism by sending specially crafted, fragmented IP packets.
2) An error exists within the ATOMIC.TCP scanning mechanism and signatures, which use regular expressions (e.g. Signature 3123.0 for Netbus Pro Traffic). This can be exploited to crash a device by producing specially crafted network traffic.
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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