Server Security - Page 6

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Magnet Goblin Hackers Exploit One-Day Flaws to Deploy Custom Linux Malware

Financially motivated hacking groups are increasingly exploiting newly disclosed vulnerabilities to deploy custom malware on public-facing servers. The threat actors are known as Magnet Goblin, and they have been quick to leverage one-day flaws, vuln...
Mar 11, 2024
  0

New Bifrost Malware Evades Detection, Threatens Linux Server Security

A new variant of Bifrost, a remote access Trojan (RAT),...
Mar 02, 2024
  0
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Cryptocurrency Mining Migo Malware Attacks Linux Redis Servers

A new malware dubbed “Migo” that is targeting Linux Red...
Feb 21, 2024
  64
22.Lock ScreenEffect Esm H115

Discover Server Security News

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BIND 8.2.x Overflow Vulnerability

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Here is an information bulletin that was issues by CIAC last Tuesday. It covers a BIND buffer overflow that exists in 8.2, 8.2.1 and 8.2.2. Here CIAC explains how the exploit works, "The exploit requires two systems to be . . .

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Linux Kernel Security Bug Discovered

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A serious bug has been discovered in the Linux kernel that can be used by local users to gain root access. The problem, a vulnerability in the Linux kernel capability model, exists in kernel versions up to and including version 2.2.15. According to Alan Cox, a key member of the Linux developer community, "It will affect programs that drop setuid state and rely on losing saved setuid, even those that check that the setuid call succeeded."To ensure that this vulnerability cannot be exploited by programs running on Linux, Linux users are advised to update to kernel version 2.2.16 immediately. Information on "capabilities" are discussed in the Capabilities FAQ We also recently ran a story on a capabilities-based operating system that is worth reading.

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Update: Blocking "Killer Resume"

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Jose Nazario has updated the .cf/.mc patch on his mirror site to include "Killer Resume" and was kind enough to share the fix with us. The patch, designed to block the ILOVEYOU worm and related worm/virus medleys, works . . .

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NIPC Tool to Detect the mstream DDoS

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The potential represented by the "mstream" Distributed Denial of Service (DDoS) exploit is a serious and continuing threat. This advisory provides an update to a previously delivered NIPC DDoS detection tool that now allows users to identify the presence of . . .

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Secure Deletion of Data

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With the use of increasingly sophisticated encryption systems, an attacker wishing to gain access to sensitive data is forced to look elsewhere for information. One avenue of attack is the recovery of supposedly erased data from magnetic media or random-access . . .

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BUGTRAQ Vulnerability Database Statistics

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Ever wanted to know which operating systems and applications have the most reported security vulnerabilities? Are there more known vulnerabilities in Windows NT or Linux? To find out check out the BUGTRAQ Vulnerability Database statistics page. . . .

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Sendmail 8.11.0 Beta Release Includes TLS

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"... Transport Layer Security (TLS) is now in open source sendmail. As the official announcement explains, "Ever since the easing of crypto export regulations in the United States, we have been working on releasing the STARTTLS and SMTP Authentication Security . . .

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The trouble with redirects

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LWN has written up an article describing the "redirect" security difficulty found by the folks at Digital Creations while tracking down a security problem with the Zope application server. "Given the way the web and authentication-based sites work, a suitably . . .

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A Complete, Secure User Login System

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Tim Perdue writes about a new PHP library he's written. "When I started seeing spam messages posted to the new column annotation system, I knew I would have to create some sort of user authentication system that helps weed out . . .

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Webserver Security (Part II)

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This second part of our two-part series on webserver security explores the problem of keeping private data in publicly accessible areas of you server and keeping data from untrustworthy sources from entering your system. Covers Apache, FTP server, PHP and . . .

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