NDLI: Generating Vulnerability Signatures for String Manipulating Programs Using Automata-Based Forward and Backward Symbolic Analyses

Content Provider	IEEE Xplore Digital Library
Author	Fang Yu Alkhalaf, M. Bultan, T.
Copyright Year	2009
Abstract	Given a program and an attack pattern (specified as a regular expression), we automatically generate string-based vulnerability signatures, i.e., a characterization that includes all malicious inputs that can be used to generate attacks. We use an automata-based string analysis framework. Using forward reachability analysis we compute an over-approximation of all possible values that string variables can take at each program point. Intersecting these with the attack pattern yields the potential attack strings if the program is vulnerable. Using backward analysis we compute an over-approximation of all possible inputs that can generate those attack strings. In addition to identifying existing vulnerabilities and their causes, these vulnerability signatures can be used to filter out malicious inputs. Our approach extends the prior work on automata-based string analysis by providing a backward symbolic analysis that includes a symbolic pre-image computation for deterministic finite automata on common string manipulating functions such as concatenation and replacement.
Starting Page	605
Ending Page	609
File Size	589566
Page Count	5
File Format	PDF
ISBN	9781424452590
ISSN	15271366
DOI	10.1109/ASE.2009.20
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-11-16
Publisher Place	New Zealand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Character generation World Wide Web Pattern analysis Doped fiber amplifiers Reachability analysis Automata Image analysis Software engineering Computer science Filters web security vulnerability signature string analysis finite automata
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Generating Vulnerability Signatures for String Manipulating Programs Using Automata-Based Forward and Backward Symbolic Analyses

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