Risk
2/15/2011
01:20 AM
George V. Hulme
George V. Hulme
Commentary
50%
50%

Successful Security: It Is In The Details

Security is both hard to do right, and easy to make the simple mistakes that could jeopardize the security of most any organization. It may be a mistake that comprises of being a single digit off. And that one number could be the difference between a secure network and one that is readily breached. That was the overriding message in a Security B-Sides Conference presentation given today by Mike Lloyd, chief scientist at security software maker Red Seal Systems.

Security is both hard to do right, and easy to make the simple mistakes that could jeopardize the security of most any organization. It may be a mistake that comprises of being a single digit off. And that one number could be the difference between a secure network and one that is readily breached. That was the overriding message in a Security B-Sides Conference presentation given today by Mike Lloyd, chief scientist at security software maker Red Seal Systems."Manually maintaining network security is very difficult," said Lloyd. "Especially if you are asking people to look at reams of listings of numbers, it's just not something people are good at," he said.

In his presentation he offered real-world examples of how security and network teams can make errors that can go unnoticed for weeks, months, and years. One of the examples he showed an actual customer's network configuration that showed how a partner could connect to virtually any port on the company's network. That connection – a serious vulnerability – should only had of permitted access to a specific service on one specific port. Lloyd explained how it took himself and another security expert a significant amount of time to find the error that was caused by a single keyword that was omitted from the firewall rule-set.

His presentation showed slide after slide of how the simplest of network layer errors could lead to a considerable breach.

My take-away: while it's important to focus on the high-level security strategy, it's just as important to make certain the minute details of your network infrastructure are configured properly. Because a single mistake can blow a hole in the side of the best laid security plans.

For my security and technology observations throughout the day, find me on Twitter as @georgevhulme.

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Cartoon
Current Issue
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2012-2808
Published: 2015-04-01
The PRNG implementation in the DNS resolver in Bionic in Android before 4.1.1 incorrectly uses time and PID information during the generation of random numbers for query ID values and UDP source ports, which makes it easier for remote attackers to spoof DNS responses by guessing these numbers, a rel...

CVE-2014-9713
Published: 2015-04-01
The default slapd configuration in the Debian openldap package 2.4.23-3 through 2.4.39-1.1 allows remote authenticated users to modify the user's permissions and other user attributes via unspecified vectors.

CVE-2015-0259
Published: 2015-04-01
OpenStack Compute (Nova) before 2014.1.4, 2014.2.x before 2014.2.3, and kilo before kilo-3 does not validate the origin of websocket requests, which allows remote attackers to hijack the authentication of users for access to consoles via a crafted webpage.

CVE-2015-0800
Published: 2015-04-01
The PRNG implementation in the DNS resolver in Mozilla Firefox (aka Fennec) before 37.0 on Android does not properly generate random numbers for query ID values and UDP source ports, which makes it easier for remote attackers to spoof DNS responses by guessing these numbers, a related issue to CVE-2...

CVE-2015-0801
Published: 2015-04-01
Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 allow remote attackers to bypass the Same Origin Policy and execute arbitrary JavaScript code with chrome privileges via vectors involving anchor navigation, a similar issue to CVE-2015-0818.

Dark Reading Radio
Archived Dark Reading Radio
Good hackers--aka security researchers--are worried about the possible legal and professional ramifications of President Obama's new proposed crackdown on cyber criminals.