Linux Security Week: February 13th, 2012
Source: LinuxSecurity Contributors - Posted by Benjamin D. Thomas   
Linux Security Week Thank you for reading the weekly security newsletter. The purpose of this document is to provide our readers with a quick summary of each week's most relevant Linux security headlines. Feature Extras:

Password guessing with Medusa 2.0 - Medusa was created by the fine folks at, in fact the much awaited Medusa 2.0 update was released in February of 2010. For a complete change log please visit

Password guessing as an attack vector - Using password guessing as an attack vector. Over the years we've been taught a strong password must be long and complex to be considered secure. Some of us have taken that notion to heart and always ensure our passwords are strong. But some don't give a second thought to the complexity or length of our password.

  No further updates for Debian 5.0 Lenny (Feb 10)

The Debian developers have pointed out, in a announcement on the debian-announce mailing list, that three years after it was released Debian GNU/Linux 5.0 (Lenny) has reached its "End of Life".

  Hacker releases Symantec source code (Feb 8)

A hacker released the source code for antivirus firm Symantec's pcAnywhere utility on Tuesday, raising fears that others could find security holes in the product and attempt takeovers of customer computers.

  Passive Network Fingerprinting; p0f Gets Fresh Rewrite (Feb 7)

In the network security world, nmap is the king for fingerprinting systems and services over the network. It can help identify the operating system (OS), type, and version of a network service, and vulnerabilities that might be present.

  Something fishy about Google Chrome's Safe Browsing API, lab says (Feb 8)

From the start, Google's Safe Browsing API was designed to spot malicious web pages so users wouldn't get trapped in them. Google identifies these sites through its own algorithms and user notification.

  Operation Ghost Click DNS servers to shut down in March (Feb 6)

One of the more widespread malware efforts over the past few years was the DNSChanger scam, which installed a Trojan horse that would change the DNS server settings on affected computers to divert traffic to rogue servers.

  Have Your Users' Passwords Already Been Hacked? (Feb 9)

Following the hack of the global intelligence firm Stratfor, hackers published the stolen password file containing the usernames and hashes for more than 860,000 accounts. An effort to use typical password breaking techniques on the file yielded quick results: About 1 in every 10 accounts had a trivial password.

  How (And Why) Attackers Choose Their Targets (Feb 7)

Every day, we hear another story about a company whose sensitive data has been breached. Press releases, tweets, customer support email, and followup articles all provide insight into the kind of information that's been compromised, the company's plans to investigate, and how affected parties can protect themselves.

  Trustwave admits issuing 'man-in-the-middle' digital certificate (Feb 8)

Digital Certificate Authority (CA) Trustwave revealed that it has issued a digital certificate that enabled an unnamed private company to spy on SSL-protected connections within its corporate network, an action that prompted the Mozilla community to debate whether the CA's root certificate should be removed from Firefox.

  Mozilla explains user-tracking proposal for Firefox (Feb 8)

In a story published yesterday your humble Reg writer wrongly confused Mozilla's Telemetry project with the open-source outfit's so-called Metrics Data Ping proposal. Mozilla has been in touch to clear things up.

  Google Chrome will no longer check for revoked SSL certificates online (Feb 9)

Google plans to remove online certificate revocation checks from future versions of Chrome, because it considers the process inefficient and slow. Browsers currently check if a website's SSL certificate has been revoked by its issuing Certificate Authority (CA) when trying to establish an HTTPS connection.

  DDoS Tools Flourish, Give Attackers Many Options (Feb 9)

More than 55 DDoS tools and services on the market offer hacktivists, increasingly driven by ideological or political goals, a wide range of choices, Arbor security researcher reports.

  The in-depth guide to data destruction (Feb 7)

A key part of any information security strategy is disposing of data once it's no longer needed. Failure to do so can lead to serious breaches of data-protection and privacy policies, compliance problems and added costs.

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