The majority of email and Web gateways, firewalls, remote access servers, UTM (united threat management) systems and other security appliances have serious vulnerabilities, according to a security researcher who analyzed products from multiple vendors.

Most security appliances are poorly maintained Linux systems with insecure Web applications installed on them, according to Ben Williams, a penetration tester at NCC Group, who presented his findings Thursday at the Black Hat Europe 2013 security conference in Amsterdam. His talk was entitled, “Ironic Exploitation of Security Products.”

Williams investigated products from some of the leading security vendors, including Symantec, Sophos, Trend Micro, Cisco, Barracuda, McAfee and Citrix. Some were analyzed as part of penetration tests, some as part of product evaluations for customers, and others in his spare time.

More than 80 percent of the tested products had serious vulnerabilities that were relatively easy to find, at least for an experienced researcher, Williams said. Many of these vulnerabilities were in the Web-based user interfaces of the products, he said.

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