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Updated CERT Advisory on Kerberos Vulnerabilities

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The Computer Emergency Response Team has updated their advisory on the recent Kerberos buffer overflow vulnerabilities. Most vendors have updated their packages already to fix this vulnerability. "The most severe vulnerability allows remote intruders to gain root privileges . . .

Anthony Pell
May 20, 2000

Kerberos In The Legal Limelight

This article discusses the recent turmoil over the Slashdot postings regarding Kerberos, and the modifications that Microsoft has made to the Kerberos security protocol. "On Thursday, lawyers for Andover.Net, the parent company of the Linux enthusiast site Slashdot, posted . . .

Anthony Pell
May 19, 2000

Ex-CIA Chief: Beware Spy-Viruses

Former CIA director R. James Woolsey, speaking on a panel here Wednesday, warned that international spies and terrorists would soon wield a more purposeful and dangerous breed of computer virus than ever seen before. Unlike Melissa, CIH or the recent . . .

Anthony Pell
May 19, 2000

Information on Slashdot DDoS

During Thursday and Saturday of last week, the slashdot.org site experienced a Distributed Denial of Service attack. The follow article recounts what happened. "What follows is more-or-less Pat "BSD-Pat" Lynch's account of the DDoS... Pat is our super 31337 . . .

Anthony Pell
May 17, 2000

'America's Most Wanted' site said DoS'ed after cyber-crime broadcast

America's Most Wanted host John Walsh urged his viewers on Saturday night to help "take down" those responsible for the distributed denial of service (DDoS) attacks which briefly crippled numerous high-profile Web sites back in February. . . .

Anthony Pell
May 17, 2000

Security Scanners for Linux

This paper discusses the differnt types of security scanners available for Linux. "A scanner is a program that automatically detects security weaknesses in a remote or localhost.". Scanners are important to Internet security because they reveal weaknesses in the . . .

Anthony Pell
May 16, 2000

New DDoS tools developed

More information on the "mstream" DDoS attack tool. "A new distributed denial-of-service (DDoS) tool found recently in computers at several universities may be able to avoid defenses put up by Web sites after a rash of DDoS attacks in February . . .

Anthony Pell
May 16, 2000

Slashdot gets trashed

Although some readers credited the shutdown to an ironic reverse "slashdot effect" caused by the crush of a linking news article, Wired News reporter Declan McCullagh quoted sources at the website blaming a distributed denial of service attack for the . . .

Anthony Pell
May 15, 2000

Call it Slash-and-Burn.org

Slashdot has fallen victim of a distributed denial of service attack. "Thursday just wasn't a good day for geek-culture destination Slashdot. First came the news that Microsoft ordered Slashdot to delete discussions of one of the company's security products. . . .

Anthony Pell
May 12, 2000

Mazu Networks Aims To Stop Hackers’ Net Attacks

Mazu Networks, a start-up that was a runner-up in the prestigious Massachusetts Institute of Technology entrepreneurship competition, aims to put an end to the hacker attacks that resulted in highly publicized outages earlier this year for Internet high-flyers Yahoo Inc. . . .

Anthony Pell
May 12, 2000

Stoic Distro for the Paranoid

"Finally, a Linux distribution geared at easing the security-conscious minds of such self-professed paranoiacs as G. Gordon Liddy has hit the streets. Nexus developers are taking names, ranks and numbers. According to its makers, Nexus is a free, . . .

Anthony Pell
May 11, 2000

Creating Warning Login Banners

Here is a good source for help in developing a Warning banner. "A requirement for successfully prosecuting those unauthorized users who improperly use a government computer is that the computer must have a warning banner displayed at all access . . .

Anthony Pell
May 11, 2000

Apache.org owned by white hats

Friendly strangers briefly took over the Apache Software Foundation server by exploiting a series of common configuration errors, and then announced their presence by inserting an advertisement for Microsoft at the bottom of the home page. The open-source Apache is . . .

Anthony Pell
May 08, 2000

Network Security With Linux 2.4

The Linux 2.4 kernel is just around the corner and, in theory, is supposed to be coming to a computer near you around the time you read this article. . . .

Anthony Pell
May 06, 2000

There but for the Grace of Bill....

Here's an analysis of the recent Microsoft worm, and an interesting commentary on it's effect on Linux users. "Guess what? No matter what you've heard about Microsoft Outlook, the situation is basically the same as it is in Linux. . . .

Anthony Pell
May 05, 2000

Big Brother Vulnerability

Notice - an exploitable buffer overflow has been reported in the Big Brother server (bbd). If you're running BB, please either update your version, apply the fix enclosed, and run BB as a non-root user! If you have . . .

Anthony Pell
May 05, 2000

Sendmail protection for ILOVEYOU worm

Included here is information that can be added to your sendmail configuration to protect your internal users from the ILOVEYOU worm from spreading, as well as more information from this bugtraq post. Be sure to note that variations . . .

Anthony Pell
May 04, 2000

Hackers release new DoS tool

The denial of service attacks that took down Yahoo, eBay, and other major Web sites has apparently inspired computer vandals to construct more attack tools. There’s a new tool called “mstream,

Anthony Pell
May 04, 2000

Linux Security: TCP-Wrappers?

Linux, like any operating system, is only as secure as you make it. Any computer that is connected to a network, and especially the Internet, is susceptible to being compromised. Security is an issue that affects everyone from home users . . .

Anthony Pell
May 04, 2000

Detecting and Decoding MStream Traffic

Elliot Turner speaks about the recent "MStream" DDoS attack, and attack signatures he's explored to detect the presence of the vulnerability. "Using the attack signature modules and SNP-L scripts included in this write-up, one can detect and decode "mstream" network . . .

Anthony Pell
May 02, 2000

Linux Network Security

I2P 2.5.0 Release Brings Improvements in Tunnels, I2PSnark & More

Canonical Makes Network Management Simpler and More Secure with Netplan 1.0

GTPDOOR Linux Malware Threatens Telecoms, Exploits GPRS Roaming Networks