Windows & .NET Magazine Security UPDATE—brought to you by Security
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(below IN FOCUS)
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June 5, 2002—In this issue:
1. IN FOCUS
- Security Conferences
2. SECURITY RISKS
- Buffer-Overrun Vulnerability in Macromedia's JRun Server 3.1 and Jrun 3.0
- Denial of Service in Microsoft Exchange 2000 Server
- Unauthorized File Disclosure in Deerfield.com's WebSite Pro 126.96.36.199
- Authentication Flaw in Windows Debugger
- Raising Windows 2000 Availability—Free Webinar
- Register for Our Latest Web Seminar and Get a Free Subscription to SQL Server Magazine!
- Submit Top Product Ideas
4. SECURITY ROUNDUP
- News: Will Electronic Eavesdropping Become a M-o-o-t Point?
- News: Microsoft's Buffer-Overrun Problem: Fact or Fallacy?
- News: Microsoft Patches Critical Exchange Hole
- Feature: New IE Update Blocks IFRAME in Outlook HTML Messages
5. SECURITY TOOLKIT
- Virus Center
- FAQ: How Can I Recover a Deleted Dynamic NTFS or FAT32 Volume in Windows XP or Windows 2000?
6. NEW AND IMPROVED
- Enhanced Virus Scanner
- PnP Policy Enforcer
7. HOT THREAD
- Windows & .NET Magazine Online Forums
- Featured Thread: Restoring Encrypted Files After Format and Reinstall
8. CONTACT US
- See this section for a list of ways to contact us.
1. IN FOCUS
(contributed by Mark Joseph Edwards, News Editor, [email protected])
Last week, I mentioned an article in CIO Magazine that discusses several ways to hire and keep security personnel. The article suggests that companies can retain staff by offering incentives such as letting employees attend yearly training conferences. A lot of security conferences and seminars are available, and the number of new events continues to grow. The cost of such events isn't cheap, and determining which events to attend isn't always easy. This week, I describe three of the more popular choices: the NetSec conference, the Black Hat Briefings, and SANSFIRE training seminars.
Computer Security Institute (CSI) hosts NetSec 2002, which takes place in San Francisco June 17 through 19. The conference will offer more than 85 sessions on a wide variety of subject matter, including Internet and intranets, secure e-commerce, VPNs, computer crime, Denial of Service (DoS) attacks, forensic investigation, response teams, cryptography and public key infrastructure (PKI), intrusion detection, Windows NT, privacy, policies, awareness, remote access, and more. In addition to the learning tracks, an exhibition will feature products from more than 70 network security vendors. Just about anyone involved in network security should consider attending NetSec 2002, and CSI is expecting more than 1500 attendees this year.
Black Hat Briefings
The next Black Hat USA 2002 Briefings and Training is scheduled for July 29 through August 1 in Las Vegas. Windows & .NET Magazine and the Security Administrator newsletter are sponsoring this popular event that includes a series of informational briefings and a training series. The briefings include more than 30 talks by notable industry insiders covering a wide range of topics such as using biometrics, auditing source code, tracing anonymous users, securing databases, using second-generation honeypots, securing email, attacking wireless networks, cracking Voice over IP (VoIP) Cisco Systems router forensics, and more. The training series includes 12 sessions that cover security-related tools and toolkits, Active Directory (AD) security, advanced Internet Control Message Protocol (ICMP) scanning techniques, and a variety of hacking techniques (e.g., hacking into Cisco networks).
The System Administration, Networking, and Security (SANS) Institute hosts numerous training events each year. The Institute's SANSFIRE 2002 event is scheduled for June 25 through July 2 in Boston. The event is for new and experienced security practitioners and includes several learning tracks, including security essentials, firewalls, perimeter protection and VPNs, intrusion detection in-depth, hacker techniques, exploits and incident handling, securing Windows, securing UNIX, auditing, forensic investigation and response, information security officer training, and more.
If you're looking for a seminar to attend outside the United States, CSI, Black Hat, and SANS all host conferences in various countries. For information about these international events, visit each organization's respective Web site. Of course, you can perform a simple Web search to locate a variety of conferences and seminars presented by other organizations. For example, I used the URLs below to search Google, and the search results revealed dozens and dozens of interesting events. Although most security-related conferences are hosted by non-vendor-affiliated organizations, many security product and service vendors offer seminars to create a better understanding of how particular products fit into a given security strategy.
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2. SECURITY RISKS
(contributed by Ken Pfeil, [email protected])
David Litchfield of Next Generation Security Software discovered a buffer-overrun condition in Macromedia's JRun Server 3.1 and Jrun 3.0. The Internet Server API (ISAPI) .dll filter that JRun uses to handle requests for .jsp resources doesn't properly handle overly long host header fields. As a result, an attacker can gain control over the process's execution. A more detailed advisory is located on Litchfield's Web site. Macromedia has released a bulletin regarding this vulnerability and recommends that affected users apply the appropriate patch listed in the bulletin.
Several people from the Computing Center, Johannes Gutenberg University, Mainz, Germany, discovered a Denial of Service (DoS) condition in Exchange 2000. This vulnerability stems from a flaw in the way Exchange 2000 handles certain malformed message attributes specified in Request for Comments (RFC) 821 and RFC 822 on received mail. An attacker can use these malformed messages to cause the Store service to consume 100 percent of CPU resources until the Exchange server processes the mail message. Rebooting the server or restarting the service won't help because the Exchange server still must process the malformed message. Microsoft Security Bulletin MS02-025 (Malformed Mail Attribute can Cause Exchange 2000 to Exhaust CPU Resources) addresses this vulnerability and recommends that affected users apply the appropriate patch listed at the URL below.
Ory Segal discovered a vulnerability in Deerfield.com's WebSite Pro 188.8.131.52 that can disclose source-script code to an unauthorized user. This condition appears when the software attempts to serve files with at least a four-character extension (e.g., .shtml), which it requests by using 8.3-format filenames. Deerfield has released version 184.108.40.206, which addresses this vulnerability.
A vulnerability exists in the authentication mechanism of the Windows 2000 and Windows NT 4.0 debugging facility that can let an unauthorized program gain access to the debugger. An attacker can use this vulnerability to cause a running program to execute a program of the attacker's choice under the system security context. Microsoft Security Bulletin MS02-024 (Authentication Flaw in Windows Debugger can Lead to Elevated Privileges) addresses these vulnerabilities and recommends that affected users apply the appropriate patch listed in the bulletin at the second URL below.
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Have you used a product that changed your IT experience by saving you time or easing your daily burden? Do you know of a terrific product that others should know about? Tell us! We want to write about the product in a future What's Hot column in Windows & .NET Magazine. Send your product suggestions to [email protected].
4. SECURITY ROUNDUP
A group of self-proclaimed civil libertarians have launched an effort to create an OS and a set of applications that prevent computer eavesdropping and data collection. The new open-source OS, dubbed "M-o-o-t," will ship in the form of a single CD-ROM that you can boot on popular PC hardware platforms.
You're accustomed to hearing about Microsoft security flaws. However, a recent warning regarding Visual C++ .NET might not have been as straightforward or helpful as it first appeared. Gary McGraw, the chief technology officer (CTO) for Cigital, claimed that the Visual C++ .NET compiler, a part of the Visual Studio .NET suite, contains an improperly implemented feature (known as Buffer Security Checking) that causes a buffer-overrun problem to appear in code written with the tool.
Microsoft has released a patch that corrects what the company calls a "critical" security flaw in Microsoft Exchange 2000 Server. The flaw lets attackers send a specially formatted message that ties up 100 percent of the server's resources.
Microsoft issued a critical update for Microsoft Internet Explorer (IE) in Microsoft Security Bulletin MS02-023 (15 May 2002 Cumulative Patch for Internet Explorer) that eliminates a longstanding vulnerability in HTML-format messages. The update prevents an <IFRAME> tag from using the Internet Sites security zone, rather than the Restricted Sites zone, to launch a file attached to a message or to open a Web page inside a message.
5. SECURITY TOOLKIT
Panda Software and the Windows & .NET Magazine Network have teamed to bring you the Center for Virus Control. Visit the site often to remain informed about the latest threats to your system security.
( contributed by John Savill, http://www.windows2000faq.com )
A. When you delete a dynamic volume in Win2K or XP, the OS erases the volume's file-system boot sector (sector 0) and removes the volume entry from the Microsoft Management Console (MMC) Disk Management snap-in private region database. However, as part of this process, the OS leaves the rest of the drive intact, including the data. Both FAT32 and NTFS store a backup copy of the boot sector. You can copy this boot sector back to sector 0 and restore the volume as long as you know the original volume size. For detailed step-by-step instructions about how to recover the volume, visit our Win2K FAQ at the URL below.
6. NEW AND IMPROVED
(contributed by Judy Drennen, [email protected])
Rockliffe released MailSite SE 5.0 for Small Enterprises, featuring integrated virus scanning, security improvements, and personal calendaring. With the new antivirus support in MailSite SE, customers no longer need to worry about viruses sneaking into their system through email. MailSite SE automatically eliminates viruses without any administrator intervention. Prices for MailSite SE start at $595 for 50 mailboxes. For more information, contact Rockliffe at 408-879-5600, or to purchase online, visit Rockliffe's Web site.
InfoExpress released CyberGatekeeper Server, a Plug and Play (PnP) appliance that proactively enforces remote and mobile desktop configurations and applications. CyberGatekeeper Server is vendor neutral and can enforce desktop configurations connected through VPNs, extranets, dial-up connections, wireless LANs (WLANs), and wired LANs. The appliance audits systems before permitting access to the network. CyberGatekeeper Server is $6500 per appliance. For more information, contact InfoExpress at 650-623-0260, or [email protected].
7. HOT THREAD
(Twenty-eight messages in this thread)
Christer writes that he runs an FTP server and noticed a COM1 directory within his PUB directory. The COM1 directory contains 600GB of data, but he can't open or delete the folder. When he tries to access the directory, Windows reports that it can't be found. Do you know how he can remove the folder?
8. CONTACT US
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(please mention the newsletter name in the subject line)
- TECHNICAL QUESTIONS — http://www.winnetmag.net/forums
- PRODUCT NEWS — [email protected]
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