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Cisco takes action on firewall flaws

Networking giant Cisco has issued patches for flaws that could lead to its security appliances being crashed.

Networking giant Cisco has issued patches for flaws that could lead to its security appliances being crashed.

The vulnerabilities were found in its PIX 500 and ASA 5500 firewall appliances and security advisory firm Secunia claimed the flaws could enable hackers to gain increased privileges and launch denial of service attacks. The Danish firm judged the flaws as ‘moderately critical’.

“Some vulnerabilities have been reported in Cisco PIX and ASA, which can be exploited by malicious users to gain escalated privileges and by malicious people to cause a DoS (Denial of Service),” Secunia said in a alert last week.

Earlier this month Cisco identified two vulnerabilities in its Internetwork Operating System (IOS), which is used by almost all Cisco routers. The flaws could enable hackers to crash the routers by manipulating the IPS protection.

In an advisory, Cisco said there were two vulnerabilities: one that could lead to the IPS being circumvented and one that could cause a denial of service condition.

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