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John Lemke

Shellshock: Code injection vulnerability found in Bash | LIVE HACKING - 0 views

www.livehacking.com/...on-vulnerability-found-in-bash

2014.09.29-TNN code bash hacking indienationnews 2014 technology tech security

shared by John Lemke on 26 Sep 14 - No Cached
  • A code injection vulnerability in the Bourne again shell (Bash) has been disclosed on the internet. If exploited then arbitrary commands can be executed, and where Bash is used in relation to a network service, for example in CGI scripts on a web server, then the vulnerability will allow remote code execution.
  • The problem is that Bash does not stop after processing the function definition; it continues to parse and execute any shell commands following the function definition
  • The vulnerability is deemed as critical because Bash is used widely on many types of UNIX-like operating systems including Linux, BSD, and Mac OS X.
  • ...1 more annotation...
  • The most prominent attack vector is via HTTP requests sent to CGI scripts executed by Bash. Also, if SSH has been configured to allow remote users to run a set of restricted commands, like rsync or git, this bug means that an attacker can use SSH to execute any command and not just the restricted command.
John Lemke

Hackers Using 'Shellshock' Bash Vulnerability to Launch Botnet Attacks - 0 views

thehackernews.com/...ash-Vulnerability-exploit.html

2014.09.29-TNN indienationnews vulnerability bash hackers security vunerability

shared by John Lemke on 27 Sep 14 - No Cached
  • Researchers on Thursday discovered a critical remotely exploitable vulnerability in the widely used command-line shell GNU Bourne Again Shell (Bash), dubbed "Shellshock" which affects most of the Linux distributions and servers worldwide, and may already have been exploited in the wild to take over Web servers as part of a botnet that is currently trying to infect other servers as well.
  • the vulnerability is already being used maliciously by the hackers.
  • There is as of yet no official patch that completely addresses both vulnerabilities, including the second, which allows an attacker to overwrite files on the targeted system.
  • ...3 more annotations...
  • It's things like CGI scripts that are vulnerable, deep within a website (like CPanel's /cgi-sys/defaultwebpage.cgi)," Graham wrote in a blog post. "Getting just the root page is the thing least likely to be vulnerable. Spidering the site and testing well-known CGI scripts (like the CPanel one) would give a lot more results—at least 10x." In addition, Graham said, "this thing is clearly wormable and can easily worm past firewalls and infect lots of systems. One key question is whether Mac OS X and iPhone DHCP service is vulnerable—once the worm gets behind a firewall and runs a hostile DHCP server, that would be 'game over' for large networks."
  • 32 ORACLE PRODUCTS VULNERABLE
  • PATCH ISSUED, BUT INCOMPLETE
  • John Lemke on 27 Sep 14
     
    "Researchers on Thursday discovered a critical remotely exploitable vulnerability in the widely used command-line shell GNU Bourne Again Shell (Bash), dubbed "Shellshock" which affects most of the Linux distributions and servers worldwide, and may already have been exploited in the wild to take over Web servers as part of a botnet that is currently trying to infect other servers as well."
John Lemke

Commander Hadfield's Amazing Cover Of David Bowie's Space Oddity Disappears Today, Than... - 0 views

www.techdirt.com/...oday-thanks-to-copyright.shtml

indienationnews 2014 cover copyright copywrong major tom David Bowie IN-

shared by John Lemke on 13 May 14 - No Cached
  • Commander Hadfield posted on Twitter this morning that today is the last day for the video online, because they only had a license to use it for one year.
  • It's got over 22 million views, and it's about to go away... because of copyright and the idea that everything needs to be licensed.
  • One would hope that David Bowie (and/or whoever else holds the copyrights in question) would recognize just how insanely bad this looks and would "grant" a perpetual free license to keep this video online. Bowie, himself, has had a rather progressive view of copyright for many years. Back in 2002, for example, Bowie declared that "I'm fully confident that copyright, for instance, will no longer exist in 10 years, and authorship and intellectual property is in for such a bashing," and further noting that this is "terribly exciting."
  • John Lemke on 13 May 14
     
    What a shame. Especially since he did a great job with the cover.
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