[Full-disclosure] HITB2011KUL - Skype Vulnerabilities 0Day Exploitation PART 1

[Research <research@xxxxxxxxxxxxxxxxxxxxx>]

Title:
======
HITB2011KUL - Skype Vulnerabilities 0Day Exploitation PART 1


Date:
=====
2012-03-31


References:
===========
Download:       http://www.vulnerability-lab.com/resources/videos/394.wmv
View:           http://www.youtube.com/watch?v=K4g86hVQ1wk



VL-ID:
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394


Abstract:
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Presentation Title Skype Vulnerabilities: Zero Day Exploitation 2011
Presentation Abstract

The popular VOIP client Skype has been beaten?! As everyone knows Skype takes 
security very seriously according 
to their own words: “The security of your information is of the utmost concern 
to us here at Skype and something 
we take very seriously” So we rose up to the challenge and tried to see if we 
could beat the system filters and/or 
software out of the box.

This presentation will offer the first in depth view & analysis of the bugs 
that where found in Skype by the 
vulnerability-lab.com research team in 2011. The presentation will also provide 
exclusive attack schemes from 
an attackers point of view which were also used for verification of our 
findings.

Buglist:

– Skype 5.3.x 2.2.x 5.2.x – Persistent Cross Site Scripting Vulnerability
– Skype 5.3.x 2.2.x 5.2.x – Persistent Software Vulnerability
– Skype v5.3.x – Transfer Standby Buffer Overflow Vulnerability
– Skype v5.2.x and v5.3.x – Critical Pointer Vulnerability
– Skype v5.3.x v2.2.x v5.2.x – Denial of Service Vulnerability

Attack schemes:

– Client Side Skype Exploitation (Local & Remote)
– Server Side Exploitation #1 (Local & Remote)
– Server Side Exploitation #2 (Local & Remote)
– Denial of Service Exploitation (Local to Remote)
– Buffer Overflow Exploitation (Remote)
– Pointer Bug Exploitation (Local)


Status:
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Published


Exploitation-Technique:
=======================
Conference


Severity:
=========
High


Credits:
========
Benjamin Kunz M.(28) is active as a penetration tester and security analyst for 
private and public 
security firms, hosting entities, banks, isp(telecom) and ips. His specialties 
are security 
checks(penetrationtests) on services, software, applications, malware analysis, 
underground economy, 
government protection or cyberwar analysis, reverse engineering, lectures or 
presentations and 
workshops about IT Security. During his work as a penetration tester and 
vulnerability researcher, 
many open- or closed source applications, software and services were formed 
more secure. In 1997, 
Benjamin K.M. founded a non-commercial and independent security research group 
called,  Global Evolution 
- Security Research Group  which is still active today.

From 2010 to 2011, Benjamin M. and Pim C. (Research Team) identified over 300 
zero day vulnerabilities 
in well known products from companies such as DELL, Barracuda, Mozilla, 
Kaspersky, McAfee, Google, 
Fortigate, Opera, Cyberoam, Safari, Endian, Skype, Asterisk, Astaro, PBX & 
SonicWall. In 2010 he founded 
the company  Evolution Security . After the firm s establishment arose the 
Vulnerability Lab as the legal 
european initiative for vulnerability researchers, analysts, penetration 
testers, and serious hacker 
groups. Ben is also the leader of the Contest + VLab Research Team. He have a 
lot of stable references 
by solved events, interviews or contests/wargames like ePost SecCup, SCS2, 
27c3, EH2008, Har2009, Da-op3n 
& he provids exclusive zero-day exploitation sessions/releases.


Disclaimer:
===========
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or incidental damages so the foregoing limitation 
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of this file requires authorization from Vulnerability-
Lab. Permission to electronically redistribute this alert in its unmodified 
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other media, are reserved by Vulnerability-Lab or its suppliers.

                                                Copyright © 
2012|Vulnerability-Lab

-- 
VULNERABILITY RESEARCH LABORATORY TEAM
Website: www.vulnerability-lab.com
Mail: research@xxxxxxxxxxxxxxxxxxxxx


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