A vulnerability has been identified in Cisco Intrusion Prevention System (IPS), which could be exploited by remote attackers to cause a denial of service or bypass security restrictions. This issue is caused by an error when handling a specific series of jumbo Ethernet frames received on a gigabit network interface of a vulnerable platform that is deployed in inline mode, which could allow attackers to cause a kernel panic, or evade access controls and detection of malicious activity in the case of Cisco IPS 4260/4270 platforms that have hardware bypass configured to pass traffic in the event of a kernel panic.
Note: Cisco IPS platforms that are deployed in promiscuous mode only or that do not contain gigabit network interfaces are not vulnerable.
Credits
Vulnerability reported by HD Moore (BreakingPoint Systems).
ChangeLog
2008-06-19 : Initial release
Vulnerability Management
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