International Journal of Computer Engineering and Applications, Volume XII, Special Issue, July 18, ISSN

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International Journal of Computer Engineering and Applications, Volume XII, Special Issue, July 18, www.ijcea.com ISSN 2321-3469 PREVENTION OF THE VULNERABILITIES IN WEB-BASED APPLICATIONS M.

Sri Divya 5 Department of Information Technology Velagapudi Ramakrishna Siddhartha Engineering College, Kanuru 520007,India ABSTRACT: Entire database of a website can be compromised due to injection

1 International Journal of Computer Engineering and Applications, Volume XII, Special Issue, July 18, ISSN PREVENTION OF THE VULNERABILITIES IN WEB-BASED APPLICATIONS M.Bhagya Lakshmi 1, S.Kranthi 2, B.Veerababu 3, N.Praveen Kumar 4, D.Sri Divya 5 Department of Information Technology Velagapudi Ramakrishna Siddhartha Engineering College, Kanuru ,India ABSTRACT: Entire database of a website can be compromised due to injection of illegal SQL queries into the website. It is a very dangerous attacking technique which may lead to a mass attack on all the websites on the same server. Applications are frequently filled with vulnerabilities that are utilized by assailants to access either the web server or the database server. Cross-webpage scripting (XSS) assaults are a sort of infusion in which noxious contents are infused into generally being and put stock in sites. The newly proposed algorithm such as Static pattern matching Algorithm is used to prevent SQL- Injection attacks and AES algorithm is used to encrypt user data then prevent XSS vulnerabilities that are found on the websites. Keywords: Injection, SQL Queries, Vulnerabilities, Web server, Database server, Deface, Website, Spam Links, Malicious, Session IDs, Cookies. [1] INTRODUCTION In the last few years, there are increasing numbers of web programmers have started realizing that the code thay write for A living plays a major part in the overall security of a website. M.Bhagya Lakshmi, S.Kranthi, B.Veerababu, N.Praveen Kumar, D.Sri Divya 1

2 PREVENTION OF THE VULNERABILITIES IN WEB-BASED APPLICATIONS There are many ways to attack the logic of the custommade Application code itself. Static web applications are the kind of web applications that are passed on to the customer accurately as set away, There is no association between the customer and the application. A static web Application demonstrate a comparable information for all customers, from all users,from every single exceptional situation, subjects to indicate day capabillites of web server. A server-side dynamic web application is a web application whose progression is controlled by an application server arranging server x-side substance. It has support between the client and site page. It has the client's data secured in the database at the server.dynamic website pages execute code on your server and can read from and keep in touch with your database. On the off chance that your site has any security issues, dynamic pages are the place those issues will be uncovered. These are otherwise called vulnerabilite or assaults. There are assaults called SQL Infusion, Cross-site Scripting, Record Inclusion,XML Infusion [1.1] Cross-site scripting Cross-site scripting(xss) suggests customer side code blend strike where in an attacker can execute malignant substance into a Site or web application. XSS is among the most hazardous of web application vulnerabilities and happens when A web application impacts utilization of unvalidated or unapproved client to enter that may understands the devastate a website page and attempt the client private information. [1.2] SQL Injection SQL Infusion shortcoming could impact any website Or then again web application that makes use of a SQLbased database, The defenselessness is one of the oldest,most pravelent and mostdangerous of web application vulnerabilities. It is the attack of mixing malevolent investigation into the database, by methods for site page data and database data, for instance, questions. [2] PROBLEM STATEMENT [2.1] SQL Injection Attack As the name proposes, a SQL infusion helplessness enables an aggressor to infuse malevolent contribution to a SQL articulation. To completely comprehend the issue we initially need to see how server-side scripting dialect handle SQL questions. For instance, a usefulness in the web application produces a string with the accompanying SQL explanation. $statements= SELECT * FROM clients WHERE username= bob AND password= mypassword,. [2.2] The Cross-site Scripting (XSS) Cross-site Scripting, generally called XSS, is a technique for bypassing the SOP thought. At whatever point HTML code is made logically, and the customer input isn't santitized and is contemplated the page an attacker could insert his own HTML code calculation of E-XSS Protect, filters the page wellspring of the dark site and prints the aggregate number of contents in it. [3] ARCHITECTURE Our proposed system is to remove prevent vulnerabilities in varios web based applications.the approach of M.james Stephen et al is closest to our work. They developed a proposal a that th Enhanced XSS guard algorithm is used to prevent cross-site scripting. Initially, we set whitelist, blacklist, and graylist to empty in our experiments. Then we manually enter some known scripts of Both white and black type into the dtabase. We refer to all the web paes basing on the scripts they contain i.e if the website contains more white scripts, then it is listed as white and if the website contains more number of black scripts, then we list it as black. When we encounter a new website which is not in both the lists, M.Bhagya Lakshmi, S.Kranthi, B.Veerababu, N.Praveen Kumar, D.Sri Divya 2

3 International Journal of Computer Engineering and Applications, Volume XII, Special Issue, July 18, ISSN then the algorithm of E-XSS Guard, scans the page source of the grey site and prints the total number of scripts in it. Fig.1.Architecture Design We have 3 modules. Each have unique functionality. 1) Client: Registration: The user can register with the details like username, password, phone number, address and address of the user. Upload Documents: After login, we are uploading an document form the database otherwise the user can upload a document form the local drive and saved into the database. The document is encrypted to get secured. Login: At the time of login, we should provide the username, password and secret key can provide acces to the documents submitted by other users which leads to a successful login. Logout: After performing all actions, the user can be logout. 2) Data Owner : Login: At the time of login, we should provide the username, password Upload Documents: After login, we are uploading an document form the database otherwise the user can upload a document form the local drive and saved into the database. The document is encrypted to get secured. Encryption: Only data owners have this right to encrypt the data to get secured from the attackers. Logout: After performing all actions, the user can be logout. 3)Administrator: Admin login: In admin login form, admin can login with username and password. View Documents: After login, admin can view all the documents submitted by various users. View : Admin can view the type of user in the website they can be attackers, data owners, requests, documents etc.., Block/UnBlock : Admin can block the users and data owners who had threatened the data. Also can unblock them as per requet. Authentication: When the user registered in the website he cannot own his profile untill and unless the admin approves his request to login. Static Pattern Matching Algorithm for SQL injection Input: Step1: SPMA(Query, SPL[ ]) Inquiry User Produced Question SPL[ ] Static Example Rundown with m Abnormality Example Step2: For j = 1 to m do Step3: If(AC(Query, String.Length(Query),SPL[j][0])==) ACspm= no.of queries attack detected*100 Total no.of queries submitted Step4: Peculiarity score = Coordinating worth (Question, SPL[j][0])/String Length(SPL[j])* 100 Step5: If (Anomalyscore Thresholdvalue) At that point Step6: Return Alert Admin else Stage 7: Return Question Acknowledged end if Stage 8: Return Question Rejected End if M.Bhagya Lakshmi, S.Kranthi, B.Veerababu, N.Praveen Kumar, D.Sri Divya 3

PREVENTION OF THE VULNERABILITIES IN WEB-BASED APPLICATIONS End For End System Website Homepage In any case, the commitment to the estimation is the SQL request there may be the probability of the

To empty the attacker plan and to recognize unlawful inquiry we are using two figurings, static illustration planning computation and dynamic case organizing estimation.

SPM is the known sort of ambushes that are in advance recognized cases and the present inquiry is facilitated with past request outline.

4 PREVENTION OF THE VULNERABILITIES IN WEB-BASED APPLICATIONS End For End System Website Homepage In any case, the commitment to the estimation is the SQL request there may be the probability of the closeness of attacker outline in the request. To empty the attacker plan and to recognize unlawful inquiry we are using two figurings, static illustration planning computation and dynamic case organizing estimation. In any case, the inquiry is checked for Static Example Coordinating (SPM) estimation. SPM is the known sort of ambushes that are in advance recognized cases and the present inquiry is facilitated with past request outline. If the inquiry isn't recognized in SPM then the request is sent to Dynamic Example Coordinating (DPM). [4.2] Description of the AES algorithm to encrypt for preventing XSS. The moved Encryption Standard, or AES, is a symmetric square figure picked by U.S.govermment to guarantee assembled information and is realized in programming and gear all through the world to encode fragile data. XSS strikes Work paying little heed to whether the site is seen over a SSL relationship, in light of the way that the substance is continue running with respect to the "secured" page, and projects can't perceive good 'ol fashioned and malignant substance served up by a web application. Inquisitively, AES plays out each one of its estimations on bytes rather than bits. Hence,AES treats the 128 bits of a plaintext impede as 16 bytes. User Login Form Secret key response Search files [5] RESULTS AND OBSERVATIONS Our project implements the creation of a simple website using JSP and MYSQL which has the vulnerabilities. [5.1] Creation of Website Open NetBeans IDE, create a new project and write the program. Establish the Database connection. Search documents M.Bhagya Lakshmi, S.Kranthi, B.Veerababu, N.Praveen Kumar, D.Sri Divya 4

5 International Journal of Computer Engineering and Applications, Volume XII, Special Issue, July 18, ISSN Download Documents Encryptdat Owner Login AdminLogin Upload Documents All the user details of the website M.Bhagya Lakshmi, S.Kranthi, B.Veerababu, N.Praveen Kumar, D.Sri Divya 5

Chart XSS Attack vulnerabilities chart All the SQL injected users [6]

6 PREVENTION OF THE VULNERABILITIES IN WEB-BASED APPLICATIONS All owners with their documents list and digital signature SQL injection Vulnerabilities Chart XSS Attack vulnerabilities chart All the SQL injected users [6] CONCLUSION: M.Bhagya Lakshmi, S.Kranthi, B.Veerababu, N.Praveen Kumar, D.Sri Divya 6

7 International Journal of Computer Engineering and Applications, Volume XII, Special Issue, July 18, ISSN The pushed Encryption Standard, or AES, is a symmetric square figure picked by U.S.govermment to guarantee assembled information and is completed in programming and hardware all through the world to encode sensitive data. XSS assaults.work paying little heed to whether the site is seen over a SSL relationship, in light of the way that the substance is continue running with respect to the "secured" site page, and projects can't perceive good 'ol fashioned and pernicious substance served up by a web application. Inquisitively, AES plays out each one of its computations on bytes,as restricted to bits. Hence,AES treats the 128 bits of a plaintext deter as 16 bytes.symmetric-key computations are counts. For cryptography that usage the same cryptographic keys for the two encryptions of plaintext and translating of ciphertext. The keys may be vague or there may be a clear change to go between the two keys. The keys, for all intents and purposes, address a typical secret between no less than two social occasions that can be used to Keep up a private information associate. [7] REFERENCES: [1] Li QianZhenyuan Zhu, lun Hu, Shuying Liu, "Exploration of SQL Infusion Assault and Aversion Innovation, 2015 Universal Gathering on Estimation, Identification and Data Fusioin (ICEDIF 2015) [2] 0ca623fa8541e0cf53b277.pdf [3] Powerful Method Of-Identifying Counteracting Web- Vulnerabilities.pdf [4] tion/web-application-infusion vulnerabilities-webapplication 039-s-security-adversary [5] [6] AppSecEU08-Petukhov.pdf [7] [8] [9] Powerful Method of-identifying Counteracting Web- Vulnerabilities.pdf M.Bhagya Lakshmi, S.Kranthi, B.Veerababu, N.Praveen Kumar, D.Sri Divya 7

8 PREVENTION OF THE VULNERABILITIES IN WEB-BASED APPLICATIONS M.Bhagya Lakshmi, S.Kranthi, B.Veerababu, N.Praveen Kumar, D.Sri Divya 8

epldt Web Builder Security March 2017

epldt Web Builder Security March 2017 TABLE OF CONTENTS Overview... 4 Application Security... 5 Security Elements... 5 User & Role Management... 5 User / Reseller Hierarchy Management... 5 User Authentication