Linux Network Security - Page 76

Discover Network Security News

Warning: Undefined property: stdClass::$helix_ultimate_image in /var/www/www.linuxsecurity.com-443/html/templates/newsberg/html/com_content/category/blog_item.php on line 54

Warning: Undefined property: stdClass::$helix_ultimate_image in /var/www/www.linuxsecurity.com-443/html/templates/newsberg/html/com_content/category/blog_item.php on line 55

Carko Worm: Significant Threat in Korea Affecting Cybersecurity

data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20viewBox=%220%200%20100%20100%22%3E%3C/svg%3E

Warning Issued Against Fast-Spreading Hacking Worm An information security institute reported a new hacking tool that is spreading quickly between companies and personal computers in Korea. The Korea Information Security Agency (KISA) said yesterday the worm, known as Carko, is similar . . .

Anthony Pell
Apr 26, 2001

Carko DDoS Tool Advisory: System Compromise Risks and Mitigations

The CERT/CC has received reports that a distributed denial-of-service (DDoS) tool named Carko is being installed on compromised hosts. Based on our analysis, Carko is a minor variant of stacheldraht, a widely used DDoS tool. The source code for Carko is . . .

Anthony Pell
Apr 25, 2001

SSH Traffic Risks: Understanding Vulnerabilities And Protection Methods

It's widely known that applications like telnet, rsh, and rlogin are vulnerable to attacks that can monitor or "sniff" network traffic and obtain login passwords or other data sent over unencrypted connections. Protocols like SSH have been assumed to be safe . . .

Anthony Pell
Apr 25, 2001

Stolen Credit Cards and Network Attacks: Managing Risks and Vulnerabilities

Stolen credit card numbers, hacked federal computer systems and other high-profile online assaults have put many users on their guards and focused the attention of security managers on high-level intrusion-detection systems, chains of firewalls and other high-level defenses. But many forget . . .

Anthony Pell
Apr 17, 2001

Protecting Wireless Access Points from Signal Interception Threats

The problem is that, unlike a piece of cable that you have to get physical access to in order to connect, it's comparatively easy to get near enough to a wireless access point to get good signal strength. Say, in a . . .

Anthony Pell
Apr 16, 2001

Wireless Security Threats Uncovered by War Driving Techniques

After fifteen minutes, Shipley's black Saturn has crawled through twelve blocks of rush hour traffic, and his jerry-rigged wireless hacking setup has discovered seventeen networks beaconing their location to the world. After an hour, the number is close to eighty. "These companies probably spend thousands of dollars on firewalls," says Shipley. "And they're wide open." . . .

Anthony Pell
Apr 15, 2001

Strengthening Application Security Beyond the Scope of Firewalls

The fundamental problem with security is that it's everyone's problem, which means that no one is actually responsible. When people talk about security today, they tend to focus on the edge of the network, where they deploy firewalls and VPN software . . .

Anthony Pell
Apr 15, 2001

Enhancing Cybersecurity: Effective Network Protection Strategies

When it comes to hardening your network against hackers, the best defense is to keep abreast of developing threats and apply patches with due diligence IT SEEMS YOU can't open a newspaper or listen to the news these days without learning . . .

Anthony Pell
Apr 12, 2001

Alcatel DSL Modems: Security Advisory For Potential Risks

Computer industry security experts believe they have discovered a vulnerability in certain high-speed modems manufactured by Alcatel, the French communications equipment giant. Though only theoretical so far, the problem makes the devices potentially vulnerable to malicious hacker attacks.

Anthony Pell
Apr 11, 2001

Exploring Network Security Solutions Through Software Process Models

My graduate professor at Johns Hopkins once told me that software engineering - when compared with civil engineering as a discipline- had progressed no further than the discovery of the right angle. He explained further that there is no silver bullet . . .

Anthony Pell
Apr 10, 2001

In-Depth Analysis of Lion Worm and Effective Prevention Techniques

This paper provides an introduction to the Lion (1i0n) Worm author and a technical analysis of the Lion Internet Worm. Three unique variations of the Lion Worm have been released on the Internet over the past month. All three versions of . . .

Anthony Pell
Apr 06, 2001

Examining ORBS and MAPS Anti-Spam Tools in Enterprise Settings

ORBS and MAPS brand spammers with a scarlet S so that networkers know who to ostracize from their mail servers. But is it the best way to stop junk e-mail? This article will look at the spam phenomenon, describe how MAPS and ORBS wage their campaigns against spam, examine their conflicts, and discuss whether their anti-spam tools have a place in the enterprise.. . .

Anthony Pell
Apr 05, 2001

Adore Worm Security Advisory: Backdoor Exploit on Linux Systems

The third Linux worm in less than three months hit the Internet this week. Known as the Adore worm, the program is designed to create so-called back doors in the security of Linux systems and send information identifying the compromised systems . . .

Anthony Pell
Apr 05, 2001

Mobile IPv6 Security Flaw: Authentication Issues Cause Delays

Backers of IPv6 -- a long-anticipated upgrade to the Internet's main communications protocol -- have suffered another setback, as security experts punched holes in their planned strategy for supporting mobile communications. The discovery of security flaws in the proposed Mobile IPv6 . . .

Anthony Pell
Apr 03, 2001

Exploring Cloaking Techniques: Major Risks to Corporate Security

A new technique for disguising programs aimed at cracking corporate networks could raise the stakes in the heated battle between hackers and security experts. During a seminar last week at the CanSecWest conference in Vancouver, British Columbia, a hacker named "K2" . . .

Anthony Pell
Apr 03, 2001

Massive Cybercriminal Attack Predicted For Internet Users Worldwide

Internet users around the globe are likely to fall victim to a massive cybercriminal attack that will take place by the end of next year, according to a report by Gartner. But the individuals responsible for this worldwide online theft will . . .

Anthony Pell
Apr 02, 2001

W32.Winux Virus Threat: Impact on Windows And Linux Safety

Anti-virus software and computer security company Central Command said today that is has identified a virus, known as W32.Winux, that infects both Windows and Linux operating systems. Steven Sundermeier, the company's product manager, said, "...this new proof of concept virus represents . . .

Anthony Pell
Mar 28, 2001

Managing Open TCP/UDP Ports To Enhance Your Network Security

In order to surf the World Wide Web, you need some open TCP/UDP ports on your PC. HTTP Web pages use port 80, SMTP e-mail passes through port 25, and various other assigned TCP/UDP ports exist within a range from 0 . . .

Anthony Pell
Mar 28, 2001

Secure Access Strategies: Authentication and Identification in E-Commerce

Identification and authentication are two magic words when it comes to security. Letting an authorized user in, while keeping unauthorized people out, sounds easier than it is. If I were to meet you on the street, I'd be able to see . . .

Anthony Pell
Mar 28, 2001

Protect Your Network: Ten Steps Against DoS and DDoS Attacks

DoS and DDoS (denial-of-service and distributed denial-of-service) attacks, which prevent legitimate users from accessing and using a site or particular service, have become a growing concern as more and more businesses move onto the Internet. Last year, retail giant Amazon.com, electronic . . .

Anthony Pell
Mar 28, 2001

Community Poll

More Polls