“A security advisory was just published! Should I hurry and upgrade all my Cisco devices now?”
This is a question that I am being asked by customers on a regular basis. In fact, I am also asked why there are so many security vulnerability advisories. To start with the second question: Cisco is committed to protecting customers by sharing critical security-related information in a very transparent way. Even if security vulnerabilities are found internally, the Cisco Product Security Incident Response Team (PSIRT) – which is my team – investigates, drives to resolution, and discloses such vulnerabilities. To quickly answer the first question, don’t panic, as you may not have to immediately upgrade your device. However, in this article I will discuss some of the guidelines and best practices for responding to Cisco security vulnerability reports.
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Tags: advisories, CVSS, cybersecurity, exploits, incident response, malware, psirt, security advisories, security advisory, security notice, security notices, security top of mind, vulnerability
Today, many encrypted networks use insecure cryptography. Attackers exploiting weak cryptography are nearly undetectable, and the data you think is secure is less safe every day. Legacy encryption technology can’t keep up with current advances in hacking and brute force computing power. Additionally, legacy solutions are increasingly inefficient as security levels rise, and perform poorly at high data rates. In order to stay ahead of this challenge, encryption needs to evolve.
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Tags: 1105 Media, crypto, cryptography, David McGrew, encryption, Mike Danseglio, NGE, security
With the industry’s drive toward personal and wearable devices, soon people will be walking around with smart glasses, watches, phones, and even shoes. Not to mention they’ll be driving networked cars.
In the future, the task of securing your personal network will become increasingly difficult, which creates a new frontier to the threat landscape, one that is certainly personal. How are people expected to secure all these devices in their everyday personal network? How will we be protected while walking around a crowded shopping mall, admiring koalas at the zoo, or boogieing down in a busy nightclub? Who will combat this emerging threat?
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Tags: IPS, security, wearable computing
Are you excited about March Madness? Turn on a TV and it will be hard to avoid the games, the news, the commentaries, and the jokes about it. If you eavesdrop in any restaurant, bar, or office conversation, I can assure you that you will hear something about it. Even U.S. President Barack Obama filled out a March Madness bracket. Productivity in many offices drops significantly as employees search and watch videos to see how their bracket picks are progressing. At Cisco, we have an open policy and employees can watch and search the scores of their favorite teams. Watch this video posted by CNN where Kip Compton, Cisco’s Video Collaboration Group CTO, talks about March Madness.
A few things to keep in mind:
- Legitimate business sites may have vulnerabilities that allow a hostile site to deliver malware.
- In most drive-by downloads, the victim is willing to dismissively click pop-ups and warnings as they navigate to the desired content. In this case, users may just click on pop-ups or ads to watch videos about their favorite team.
- Most drive-by downloads can be prevented by keeping software up to date. Read More »
Tags: Cisco Security, cisco sio, crimeware, dns, exploit kit, java vulnerability, malware, march madness, XSS
Around 12:00 GMT March 16, 2013, a distributed denial of service (DDoS) attack took offline both the spamhaus.org website and a portion of its e-mail services. SpamHaus was able to restore connectivity by March 18; however, SpamHaus is still weathering a massive, ongoing DDoS attack. The DDoS attacks have also had less severe but measurable consequences for the Composite Block List (CBL) as well as Project Honey Pot.
The attackers appear to have hijacked at least one of SpamHaus’ IP addresses via a maliciously announced BGP route and subsequently used a Domain Name System (DNS) server at the IP to return a positive result for every SpamHaus Domain Name System-based Block List (DNSBL) query. This caused all SpamHaus customers querying the rogue nameserver to erroneously drop good connections.
Tags: Cisco Security, cisco sio, DDoS, distributed denial of service, dns, DNS reflection attack, spamhaus, TRAC