Microsoft plugs nine holes in Windows, DNS, SQL
It's among the vendors patching a multiplatform DNS vulnerability
Computerworld - Microsoft Corp. today patched nine vulnerabilities in Windows, Exchange, SQL Server and the company's Domain Name System (DNS) server and client software.
All nine flaws were rated "important" by Microsoft, the second-highest threat rating in the company's four-step scoring system.
One of the Microsoft fixes for Windows DNS was part of a group of patches issued today by software vendors to plug a multiplatform hole. The researcher who uncovered the vulnerability called the group patch effort the "largest synchronized security update in the history of the Internet."
"We've had four updates to Microsoft's DNS since 2007 -- and one led to a bot, Rinbot, in April 2007," noted Andrew Storms, director of security operations at nCircle Network Security Inc."
Storms was referring to the episode last year when researchers spotted then-new variants of Rinbot exploiting a zero-day flaw in Windows DNS Server Service. The most recent patch for Windows DNS was released as MS08-020 in April, part of that month's eight-update, 10-fix batch of updates.
The fix for the DNS cache poisoning vulnerability -- which was reported to Microsoft by Dan Kaminsky, a noted researcher and director of penetration testing at Seattle-based IOActive Inc. -- is part of a larger, coordinated rollout today. The Internet Software Consortium (ISC) has also updated its popular open-source BIND DNS software, which vendors like Red Hat Inc. and Sun Microsystems Inc. will be pushing to their users today.
"This is pretty bad, pretty bad," said Kaminsky. "I wish I could go into full detail, but...."
Kaminsky, who held a news conference today with Jerry Dixon, former director of the national Cyber Security Division at the U.S. Department of Homeland Security, to discuss the DNS cache poisoning bug, said he would withhold specifics of the vulnerability for about a month. He plans to present his findings at the Black Hat security conference, which runs Aug. 2-7 in Las Vegas.
"But look at how many people have worked this entire year to make this happen," Kaminsky hinted. "This is not your everyday vulnerability. There are vulnerabilities, and then there are vulnerabilities. But that doesn't mean you panic."
He predicted that exploits will be crafted for the DNS flaw. "I don't think this will survive reverse engineering."
Storms of nCircle put it into perspective. "A reliable DNS cache exploit means that the probability of redirecting an unsuspecting user to a malicious Web site has just increased dramatically," he said, urging users -- enterprise administrators in particular -- to install the patch pronto. "Every network administrator in the world needs to drop that iPhone, get off their BlackBerry and patch their DNS now."
- Warning: Cloud Data at Risk Experts agree that relying on SaaS vendors to backup and restore your data is dangerous. Yet that's exactly what huge portions of the...
- The Opportunities and Challenges of the Cloud In this report F5 poses questions to IDC analysts, Sally Hudson and Phil Hochmuth, on behalf of F5's customers to better understand the...
- Mobile First: Securing Information Sprawl Learn how the partnership between Box and MobileIron can help you execute a "mobile first" strategy that manages and secures both mobile apps...
- The Truth About Cloud Security "Security" is the number one issue holding business leaders back from the cloud. But does the reality match the perception?
- What should I look for in a Next Generation Firewall? SANS Provides Guidance With so many vendors claiming to have a Next Generation Firewall (NGFW), it can be difficult to tell what makes each one different....
- Responding to New SSL Cybersecurity Threat The featured Gartner research examines current strategies to address new SSL cybersecurity threats and vulnerabilities. All Security White Papers | Webcasts
Our new bimonthly Internet of Things newsletter helps you keep pace with the rapidly evolving technologies, trends and developments related to the IoT. Subscribe now and stay up to date!