Difference between revisions of "OWASP AppSensor Project"
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== Project Founder ==
== Project Founder ==
* Michael Coates
* Michael Coates.@owasp.org
== Project Leaders ==
== Project Leaders ==
* Dennis Groves
* Dennis Groves
* John Melton
* John Melton
* Colin Watson
* Colin Watson.@owasp.org
== Related Projects ==
== Related Projects ==
Revision as of 03:42, 10 August 2014
The AppSensor project defines a conceptual framework and methodology that offers prescriptive guidance to implement intrusion detection and automated response into applications.
If you walk into a bank and try opening random doors, you will be identified, led out of the building and possibly arrested. However, if you log into an online banking application and start looking for vulnerabilities no one will say anything. This needs to change! As critical applications continue to become more accessible and inter-connected, it is paramount that critical information is sufficiently protected. We must also realize that our defenses may not be perfect. Given enough time, attackers can identify security flaws in the design or implementation of an application.
In addition to implementing layers of defense within an application, we must identify malicious individuals before they are able to identify any gaps in our defenses. The best place to identify malicious activity against the application is within the application itself. Network based intrusion detection systems are not appropriate to handle the custom and intricate workings of an enterprise application and are ill-suited to detect attacks focusing on application logic such as authentication, access control, etc. This project delivers a framework which can be used to build a robust system of attack detection, analysis, and response within an enterprise application.
Detect and Respond to Attacks from Within the Application
AppSensor defines over 50 different detection points which can be used to identify a malicious attacker.
AppSensor provides guidance on how to respond once a malicious attacker has been identified. Possible actions include: logging out the user, locking the account or notifying an administrator. More than a dozen response actions are described.
Defending the Application
An attacker often requires numerous probes and attack attempts in order to locate an exploitable vulnerability within the application. By using AppSensor it is possible to identify and eliminate the threat of an attacker before they are able to successfully identify an exploitable flaw.
OWASP AppSensor is free to use. It is licensed under the Creative Commons Attribution-ShareAlike 3.0 license, so you can copy, distribute and transmit the work, and you can adapt it, and use it commercially, but all provided that you attribute the work and if you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.
© OWASP Foundation
What is AppSensor?
Detect and respond to attacks from within the application.
Download the PDF from CrossTalk Magazine.
News and Events
Note: LEGACY AppSensor v1 https://code.google.com/p/appsensor/
The AppSensor Guide v2.0 can be purchased at cost as a print on demand book from Lulu.com.
All OWASP projects rely on the voluntary efforts of people in the software development and information security sectors. They have contributed their time and energy to make suggestions, provide feedback, write, review and edit documentation, give encouragement, make introductions, produce demonstration code, promote the concept, and provide OWASP support. They participated via the project’s mailing lists, by developing code, by updating the wiki, by undertaking research studies, and through contributions during the AppSensor working session at the OWASP Summit 2011 in Portugal and the AppSensor Summit at AppSec USA 2011. Without all their efforts, the project would not have progressed to this point, and this guide would not have been completed.
OWASP Summer of Code 2008
The AppSensor Project was initially supported by the OWASP Summer of Code 2008, leading to the publication of the book AppSensor v1.1.
Google Summer of Code 2012
The project has also benefitted greatly from the generous contribution of time and effort by many volunteers in the OWASP community including those listed above, and contributors to the OWASP ESAPI project, members of the former OWASP Global Projects Committee, the OWASP Board, OWASP staff and support from the OWASP Project Reboot initiative. The v2 code and documentation were conceived during the AppSensor Summit held during AppSec USA 2011 in Minneapolis.
Please join the project's mailing lists to keep up-to-date with what's going on, and to contribute your ideas, feedback, and experience:
The current code being worked on is located on GitHub
The code has been fully rewritten. The main reason for the rewrite was to allow a client-server style model as opposed to requiring AppSensor be fully embedded in the application. You can now have a central server collecting events from multiple applications and performing analysis. These front-end applications can be in any language as long as they speak rest/soap. There's been a host of other changes, but this was the primary one. A number of starter ideas for coding, user interface and documentation have been outlined via the mailing list at 17th March 2014.
if you want to work on ANYTHING, please let jtmelton[@]gmail.com know.
May 2014 Finalisation and publication of the AppSensor Guide v2.0
November, 2013 - AppSensor 2.0 hackathon, and document writing & review at AppSecUSA 2013, New York
2012-2013 - Active Development of next AppSensor book
September, 2011 - AppSensor Summit at AppSec USA 2011, Minneapolis
September, 2010 - Presented at AppSecUSA slides
June, 2010 - Active ESAPI Integration Underway
November, 2009 OWASP DC, November 2009
2009 v1.2 in the works, demo application in development
January, 2009 - v1.1 Released - Beta Status
November, 2008 - AppSensor Talk at OWASP Portugal
November, 2008 - v1.0 Released - Beta Status
April 16, 2008 - Project Begins
Below are the primary detection points defined within AppSensor. These are just the titles; the document contains descriptions, examples and considerations for implementing these detection points.
Summary of Information Detection Categories:
RE - Request
AE - Authentication
SE - Session
ACE - Access Control
IE - Input
EE - Encoding
CIE - Command Injection
FIO - File IO
HT - Honey Trap
UT - User Trend
STE - System Trend
RP - Reputation
Signature Based Event Titles
RE1 Unexpected HTTP Command
RE2 Attempt to Invoke Unsupported HTTP Method
RE3 GET When Expecting POST
RE4 POST When Expecting GET
RE5 Additional/Duplicated Data in Request
RE6 Data Missing from Request
RE7 Unexpected Quantity of Characters in Parameter
RE8 Unexpected Type of Characters in Parameter
AE1 Use Of Multiple Usernames
AE2 Multiple Failed Passwords
AE3 High Rate of Login Attempts
AE4 Unexpected Quantity of Characters in Username
AE5 Unexpected Quantity of Characters in Password
AE6 Unexpected Type of Character in Username
AE7 Unexpected Type of Character in Password
AE8 Providing Only the Username
AE9 Providing Only the Password
AE10 Adding POST Variable
AE11 Missing POST Variable
AE12 Utilization of Common Usernames
SE1 Modifying Existing Cookie
SE2 Adding New Cookie
SE3 Deleting Existing Cookie
SE4 Substituting Another User's Valid Session ID or Cookie
SE5 Source IP Address Changes During Session
SE6 Change Of User Agent Mid Session
ACE1 Modifying URL Argument Within a GET for Direct Object Access Attempt
ACE2 Modifying Parameter Within a POST for Direct Object Access Attempt
ACE3 Force Browsing Attempt
ACE4 Evading Presentation Access Control Through Custom POST
IE1 Cross Site Scripting Attempt
IE2 Violation of Implemented White Lists
IE3 Violation Of Implemented Black Lists
IE4 Violation of Input Data Integrity
IE5 Violation of Stored Business Data Integrity
IE6 Violation of Security Log Integrity
EE1 Double Encoded Character
EE2 Unexpected Encoding Used
CIE1 Blacklist Inspection for Common SQL Injection Values
CIE2 Detect Abnormal Quantity of Returned Records
CIE3 Null Byte Character in File Request
CIE4 Carriage Return or Line Feed Character In File Request
FIO1 Detect Large Individual File
FIO2 Detect Large Number of File Uploads
HT1 Alteration to Honey Trap Data
HT2 Honey Trap Resource Requested
HT3 Honey Trap Data Used
Behavior Based Event Titles
UT1 Irregular Use of Application
UT2 Speed of Application Use
UT3 Frequency of Site Use
UT4 Frequency of Feature Use
STE1 High Number of Logouts Across The Site
STE2 High Number of Logins Across The Site
STE3 Significant Change in Usage of Same Transaction Across The Site
RP1 Suspicious or Disallowed User IP Address
RP2 Suspicious External User Behavior
RP3 Suspicious Client-Side Behavior
RP4 Change to Environment Threat Level
- OWASP AppSensor Guide
July, 2010 - OWASP London (UK) - Real Time Application Attack Detection and Response with OWASP AppSensor
June, 2010 - OWASP Leeds/North (UK) - OWASP AppSensor - The Self-Aware Web Application
June, 2010 - Video presentation - Automated Application Defenses to Thwart Advanced Attackers
November, 2009 - AppSec DC - Defend Yourself: Integrating Real Time Defenses into Online Applications
May, 2009 - OWASP Podcast #51
May, 2009 - AppSec EU Poland - Real Time Defenses against Application Worms and Malicious Attackers
November, 2008 - OWASP Summit Portugal 2008 PPT
Video Demos of AppSensor
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