Talk su network security ed hacking

[Giuseppe Bianchi < >]

Ho sentito parlare questo ragazzo in una conferenza lo scorso anno, e 
l'ho immediatamente invitato!! Lui si occupa di un tema di ricerca 
decisamente non usuale ma veramente affascinante: "economia del 
malware"; per esempio lo scorso anno ci aveva raccontato di modelli 
economici che stanno emergendo nel mondo delle botnet, e quest'anno vedo 
dall'abstract di cui sotto che e' andato ulteriormente avanti. Ed e' 
molto bravo, vale la pena sentirlo! Dettagli a seguire, il seminario e' 
lunedi' prossimo primo pomeriggio. Cari saluti, GB

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February 11th 2013
Department of Electronic Engineering
“Tor Vergata” University

Via del Politecnico, 1 - Roma

Meeting room R3 - 14:30 – 16:00


Luca Allodi

Talk : Exploitation in the wild: what hackers really do, and what we 
should worry about.

Abstract:
Vulnerability exploitation is a major threat to software and system 
security. The current model for the attacker, basically unmodified since 
the ‘70s, is well synthetized in Bruce Schneier’s famous quote “security 
is only as strong as the weakest link”. In other words, if a 
vulnerability is there the defender needs to fix it because, sooner or 
later, the very powerful attacker will exploit it. From this “vision of 
security”, metrics for vulnerability risk (CVSS score) and guidelines 
and policies for vulnerability remediation (U.S. Government SCAP 
Protocol) emerged. Most research in IT security also relies on these 
assumptions. However, this model seems in contrast with recent 
observations of attacks in the wild, according to which automatically 
generated attacks represent two thirds of the threats for the final user 
[Google 2011, Symantec 2011]. To better understand this scenario we 
performed three parallel studies:
1) We analyzed the Black Markets for vulnerabilities and extracted 
information on market properties, traded attack automation tools (namely 
Exploit Kits) and vulnerabilities.
2) We collected and analyzed data on vulnerabilities actually exploited 
in the wild from Symantec’s sensors worldwide.
3) We tested the CVSS score as a “risk test for exploitation”, as 
current guidelines (such as the U.S. SCAP protocol) suggest using it.
Our results evidence that current approaches to computer security may be 
deeply affected and misled by unrealistic assumptions on vulnerabilities 
and exploits, vulnerability measures and attacker capabilities. As a 
consequence, current policies and guidelines relying on the worldwide 
accepted CVSS score could be widely sub-optimal. We underline that a new 
approach to computer security may be needed in order to enhance risk 
metrics, and therefore to allow for better policies, better investments 
and a better management of security.

[Google 2011] M. Rajab, L. Ballard, N. Jagpal, P. Mavrommatis, D. 
Nojiri, N. Provos, and L. Schmidt. Trends in circumventing web-malware 
detection. Technical report, Google, 2011.
[Symantec 2011] Symantec. Analysis of Malicious Web Activity bya ttack 
Toolkits. Symantec, Available on the web at 
http://www.symantec.com/threatreport/topic.jsp?
id=threat activity 
trends&aid=analysis of malicious web activity, online edition, 2011. 
Accessed on June 1012.


Speaker short bio:

Luca Allodi received his Master Degree in Information Security from the 
University of Milan in 2011. Back in 2005, during the last years of high 
school he was co-founder and CEO of Area-Software, a start-up for web 
development and IT consultancy in Brescia, his hometown. The experience 
with Area-Software continued for more than six years, until his 
enrollment as a Ph.D. student at the University of Trento, where Luca is 
currently located. His interest for research dates back to the time of 
his bachelor thesis in Milan, where he worked on social network dynamics 
and information exchange and integrity. This work resulted in two 
research papers and seeded so far three more Master degree theses at the 
University of Milan, one of which he co-supervised. During his Ph.D., 
his research interests moved to the economics of vulnerability 
exploitation and how these could be used as a proxy for risk measurement 
and assessment. He is part of the research group UNITN at FP7 European 
project SECONOMICS.