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Xalgord c93656f8e0 Update README.md		2021-02-26 17:35:32 +05:30
README.md	Update README.md	2021-02-26 17:35:32 +05:30

README.md

Get Started & Become Expert, Beginners To Expert!

Content List:

Phase 1 – History
Phase 2 – Web and Server Technology
Phase 3 – Setting up the lab with BurpSuite and bWAPP
Phase 4 – Mapping the application and attack surface
Phase 5 – Understanding and exploiting OWASP top 10 vulnerabilities
Phase 6 – Session management testing
Phase 7 – Bypassing client-side controls
Phase 8 – Attacking authentication/login
Phase 9 - Attacking access controls (IDOR, Priv esc, hidden files and directories)
Phase 10 – Attacking Input validations (All injections, XSS and mics)
Phase 11 – Generating and testing error codes
Phase 12 – Weak cryptography testing
Phase 13 – Business logic vulnerability

Web Application Penetration Testing

Phase 1 – History

History of the Internet - https://www.youtube.com/watch?v=9hIQjrMHTv4

Phase 2 – Web and Server Technology

Basic concepts of web applications, how they work and the HTTP protocol - https://www.youtube.com/watch?v=RsQ1tFLwldY&t=7s

HTML basics part 1 - https://www.youtube.com/watch?v=p6fRBGI_BY0

HTML basics part 2 - https://www.youtube.com/watch?v=Zs6lzuBVK2w

Difference between static and dynamic website - https://www.youtube.com/watch?v=hlg6q6OFoxQ

HTTP protocol Understanding - https://www.youtube.com/watch?v=JFZMyhRTVt0

Parts of HTTP Request -https://www.youtube.com/watch?v=pHFWGN-upGM

Parts of HTTP Response - https://www.youtube.com/watch?v=c9sMNc2PrMU

Various HTTP Methods - https://www.youtube.com/watch?v=PO7D20HsFsY

Understanding URLS - https://www.youtube.com/watch?v=5Jr-_Za5yQM

Intro to REST - https://www.youtube.com/watch?v=YCcAE2SCQ6k

HTTP Request & Response Headers - https://www.youtube.com/watch?v=vAuZwirKjWs

What is a cookie - https://www.youtube.com/watch?v=I01XMRo2ESg

HTTP Status codes - https://www.youtube.com/watch?v=VLH3FMQ5BIQ

HTTP Proxy - https://www.youtube.com/watch?v=qU0PVSJCKcs

Authentication with HTTP - https://www.youtube.com/watch?v=GxiFXUFKo1M

HTTP basic and digest authentication - https://www.youtube.com/watch?v=GOnhCbDhMzk

What is “Server-Side” - https://www.youtube.com/watch?v=JnCLmLO9LhA

Server and client side with example - https://www.youtube.com/watch?v=DcBB2Fp8WNI

What is a session - https://www.youtube.com/watch?v=WV4DJ6b0jhg&t=202s

Introduction to UTF-8 and Unicode - https://www.youtube.com/watch?v=sqPTR_v4qFA

URL encoding - https://www.youtube.com/watch?v=Z3udiqgW1VA

HTML encoding - https://www.youtube.com/watch?v=IiAfCLWpgII&t=109s

Base64 encoding - https://www.youtube.com/watch?v=8qkxeZmKmOY

Hex encoding & ASCII - https://www.youtube.com/watch?v=WW2SaCMnHdU

Phase 3 – Setting up the lab with BurpSuite and bWAPP

### MANISH AGRAWAL

Setup lab with bWAPP - https://www.youtube.com/watch?v=dwtUn3giwTk&index=1&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV

Set up Burp Suite - https://www.youtube.com/watch?v=hQsT4rSa_v0&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV&index=2

Configure Firefox and add certificate - https://www.youtube.com/watch?v=hfsdJ69GSV4&index=3&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV

Mapping and scoping website - https://www.youtube.com/watch?v=H-_iVteMDRo&index=4&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV

Spidering - https://www.youtube.com/watch?v=97uMUQGIe14&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV&index=5

Active and passive scanning - https://www.youtube.com/watch?v=1Mjom6AcFyU&index=6&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV

Scanner options and demo - https://www.youtube.com/watch?v=gANi4Kt7-ek&index=7&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV

Introduction to password security - https://www.youtube.com/watch?v=FwcUhcLO9iM&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV&index=8

Intruder - https://www.youtube.com/watch?v=wtMg9oEMTa8&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV&index=9

Intruder attack types - https://www.youtube.com/watch?v=N5ndYPwddkQ&index=10&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV

Payload settings - https://www.youtube.com/watch?v=5GpdlbtL-1Q&index=11&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV

Intruder settings - https://www.youtube.com/watch?v=B_Mu7jmOYnU&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV&index=12

ÆTHER SECURITY LAB

No.1 Penetration testing tool - https://www.youtube.com/watch?v=AVzC7ETqpDo&list=PLq9n8iqQJFDrwFe9AEDBlR1uSHEN7egQA&index=1

Environment Setup - https://www.youtube.com/watch?v=yqnUOdr0eVk&index=2&list=PLq9n8iqQJFDrwFe9AEDBlR1uSHEN7egQA

General concept - https://www.youtube.com/watch?v=udl4oqr_ylM&list=PLq9n8iqQJFDrwFe9AEDBlR1uSHEN7egQA&index=3

Proxy module - https://www.youtube.com/watch?v=PDTwYFkjQBE&list=PLq9n8iqQJFDrwFe9AEDBlR1uSHEN7egQA&index=4

Repeater module - https://www.youtube.com/watch?v=9Zh_7s5csCc&list=PLq9n8iqQJFDrwFe9AEDBlR1uSHEN7egQA&index=5

Target and spider module - https://www.youtube.com/watch?v=dCKPZUSOlr8&list=PLq9n8iqQJFDrwFe9AEDBlR1uSHEN7egQA&index=6

Sequencer and scanner module - https://www.youtube.com/watch?v=G-v581pXerE&list=PLq9n8iqQJFDrwFe9AEDBlR1uSHEN7egQA&index=7

Phase 4 – Mapping the application and attack surface

Spidering - https://www.youtube.com/watch?v=97uMUQGIe14&list=PLv95pq8fEyuivHeZB2jeC435tU3_1YGzV&index=5

Mapping application using robots.txt - https://www.youtube.com/watch?v=akuzgZ75zrk

Discover hidden contents using dirbuster - https://www.youtube.com/watch?v=--nu9Jq07gA

Dirbuster in detail - https://www.youtube.com/watch?v=2tOQC68hAcQ 1

Discover hidden directories and files with intruder - https://www.youtube.com/watch?v=4Fz9mJeMNkI

Directory bruteforcing 1 - https://www.youtube.com/watch?v=ch2onB_LFoI

Directory bruteforcing 2 - https://www.youtube.com/watch?v=ASMW_oLbyIg

Identify application entry points - https://www.youtube.com/watch?v=IgJWPZ2OKO8&t=34s

Identify application entry points - https://www.owasp.org/index.php/Identify_application_entry_points_(OTG-INFO-006)

Identify client and server technology - https://www.youtube.com/watch?v=B8jN_iWjtyM

Identify server technology using banner grabbing (telnet) - https://www.youtube.com/watch?v=O67M-U2UOAg

Identify server technology using httprecon - https://www.youtube.com/watch?v=xBBHtS-dwsM

Pentesting with Google dorks Introduction - https://www.youtube.com/watch?v=NmdrKFwAw9U

Fingerprinting web server - https://www.youtube.com/watch?v=tw2VdG0t5kc&list=PLxLRoXCDIalcRS5Nb1I_HM_OzS10E6lqp&index=10

Use Nmap for fingerprinting web server - https://www.youtube.com/watch?v=VQV-y_-AN80

Review webs servers metafiles for information leakage - https://www.youtube.com/watch?v=sds3Zotf_ZY

Enumerate applications on web server - https://www.youtube.com/watch?v=lfhvvTLN60E

Identify application entry points - https://www.youtube.com/watch?v=97uMUQGIe14&list=PLDeogY2Qr-tGR2NL2X1AR5Zz9t1iaWwlM

Map execution path through application - https://www.youtube.com/watch?v=0I0NPiyo9UI

Fingerprint web application frameworks - https://www.youtube.com/watch?v=ASzG0kBoE4c

Phase 5 – Understanding and exploiting OWASP top 10 vulnerabilities

A closer look at all owasp top 10 vulnerabilities - https://www.youtube.com/watch?v=avFR_Af0KGk

Phase 6 – Session management testing

Bypass authentication using cookie manipulation - https://www.youtube.com/watch?v=mEbmturLljU

Cookie Security Via httponly and secure Flag - OWASP - https://www.youtube.com/watch?v=3aKA4RkAg78

Penetration testing Cookies basic - https://www.youtube.com/watch?v=_P7KN8T1boc

Session fixation 1 - https://www.youtube.com/watch?v=ucmgeHKtxaI

Session fixation 2 - https://www.youtube.com/watch?v=0Tu1qxysWOk

Session fixation 3 - https://www.youtube.com/watch?v=jxwgpWvRUSo

Session fixation 4 - https://www.youtube.com/watch?v=eUbtW0Z0W1g

CSRF - Cross site request forgery 1 - https://www.youtube.com/watch?v=m0EHlfTgGUU

CSRF - Cross site request forgery 2 - https://www.youtube.com/watch?v=H3iu0_ltcv4

CSRF - Cross site request forgery 3 - https://www.youtube.com/watch?v=1NO4I28J-0s

CSRF - Cross site request forgery 4 - https://www.youtube.com/watch?v=XdEJEUJ0Fr8

CSRF - Cross site request forgery 5 - https://www.youtube.com/watch?v=TwG0Rd0hr18

Session puzzling 1 - https://www.youtube.com/watch?v=YEOvmhTb8xA

Admin bypass using session hijacking - https://www.youtube.com/watch?v=1wp1o-1TfAc

Phase 7 – Bypassing client-side controls

What is hidden forms in HTML - https://www.youtube.com/watch?v=orUoGsgaYAE

Bypassing hidden form fields using tamper data - https://www.youtube.com/watch?v=NXkGX2sPw7I

Bypassing hidden form fields using Burp Suite (Purchase application) - https://www.youtube.com/watch?v=xahvJyUFTfM

Changing price on eCommerce website using parameter tampering - https://www.youtube.com/watch?v=A-ccNpP06Zg

Understanding cookie in detail - https://www.youtube.com/watch?v=_P7KN8T1boc&list=PLWPirh4EWFpESKWJmrgQwmsnTrL_K93Wi&index=18

Cookie tampering with tamper data- https://www.youtube.com/watch?v=NgKXm0lBecc

Cookie tamper part 2 - https://www.youtube.com/watch?v=dTCt_I2DWgo

Understanding referer header in depth using Cisco product - https://www.youtube.com/watch?v=GkQnBa3C7WI&t=35s

Introduction to ASP.NET viewstate - https://www.youtube.com/watch?v=L3p6Uw6SSXs

ASP.NET viewstate in depth - https://www.youtube.com/watch?v=Fn_08JLsrmY

Analyse sensitive data in ASP.NET viewstate - https://msdn.microsoft.com/en-us/library/ms972427.aspx?f=255&MSPPError=-2147217396

Cross-origin-resource-sharing explanation with example - https://www.youtube.com/watch?v=Ka8vG5miErk

CORS demo 1 - https://www.youtube.com/watch?v=wR8pjTWaEbs

CORS demo 2 - https://www.youtube.com/watch?v=lg31RYYG-T4

Security headers - https://www.youtube.com/watch?v=TNlcoYLIGFk

Security headers 2 - https://www.youtube.com/watch?v=ZZUvmVkkKu4

Attacking login panel with bad password - Guess username password for the website and try different combinations

Brute-force login panel - https://www.youtube.com/watch?v=25cazx5D_vw

Username enumeration - https://www.youtube.com/watch?v=WCO7LnSlskE

Username enumeration with bruteforce password attack - https://www.youtube.com/watch?v=zf3-pYJU1c4

Authentication over insecure HTTP protocol - https://www.youtube.com/watch?v=ueSG7TUqoxk

Authentication over insecure HTTP protocol - https://www.youtube.com/watch?v=WQe36pZ3mA

Forgot password vulnerability - case 1 - https://www.youtube.com/watch?v=FEUidWWnZwU

Forgot password vulnerability - case 2 - https://www.youtube.com/watch?v=j7-8YyYdWL4

Testing for weak password policy - https://www.owasp.org/index.php/Testing_for_Weak_password_policy(OTG-AUTHN-007)

Insecure distribution of credentials - When you register in any website or you request for a password reset using forgot password feature, if the website sends your username and password over the email in cleartext without sending the password reset link, then it is a vulnerability.

Test for credentials transportation using SSL/TLS certificate - https://www.youtube.com/watch?v=21_IYz4npRs

Basics of MySQL - https://www.youtube.com/watch?v=yPu6qV5byu4

Testing browser cache - https://www.youtube.com/watch?v=2T_Xz3Humdc

Bypassing login panel -case 1 - https://www.youtube.com/watch?v=TSqXkkOt6oM

Bypass login panel - case 2 - https://www.youtube.com/watch?v=J6v_W-LFK1c

Phase 9 - Attacking access controls (IDOR, Priv esc, hidden files and directories)

### Completely unprotected functionalities

Finding admin panel - https://www.youtube.com/watch?v=r1k2lgvK3s0

Finding admin panel and hidden files and directories - https://www.youtube.com/watch?v=Z0VAPbATy1A

Finding hidden webpages with dirbusater - https://www.youtube.com/watch?v=--nu9Jq07gA&t=5s

Insecure direct object reference

IDOR case 1 - https://www.youtube.com/watch?v=gci4R9Vkulc

IDOR case 2 - https://www.youtube.com/watch?v=4DTULwuLFS0

IDOR case 3 (zomato) - https://www.youtube.com/watch?v=tCJBLG5Mayo

Privilege escalation

What is privilege escalation - https://www.youtube.com/watch?v=80RzLSrczmc

Privilege escalation - Hackme bank - case 1 - https://www.youtube.com/watch?v=g3lv__87cWM

Privilege escalation - case 2 - https://www.youtube.com/watch?v=-i4O_hjc87Y

Phase 10 – Attacking Input validations (All injections, XSS and mics)

### HTTP verb tampering

Introduction HTTP verb tampering - https://www.youtube.com/watch?v=Wl0PrIeAnhs

HTTP verb tampering demo - https://www.youtube.com/watch?v=bZlkuiUkQzE

HTTP parameter pollution

Introduction HTTP parameter pollution - https://www.youtube.com/watch?v=Tosp-JyWVS4

HTTP parameter pollution demo 1 - https://www.youtube.com/watch?v=QVZBl8yxVX0&t=11s

HTTP parameter pollution demo 2 - https://www.youtube.com/watch?v=YRjxdw5BAM0

HTTP parameter pollution demo 3 - https://www.youtube.com/watch?v=kIVefiDrWUw

XSS - Cross site scripting

Introduction to XSS - https://www.youtube.com/watch?v=gkMl1suyj3M

What is XSS - https://www.youtube.com/watch?v=cbmBDiR6WaY

Reflected XSS demo - https://www.youtube.com/watch?v=r79ozjCL7DA

XSS attack method using burpsuite - https://www.youtube.com/watch?v=OLKBZNw3OjQ

XSS filter bypass with Xenotix - https://www.youtube.com/watch?v=loZSdedJnqc

Reflected XSS filter bypass 1 - https://www.youtube.com/watch?v=m5rlLgGrOVA

Reflected XSS filter bypass 2 - https://www.youtube.com/watch?v=LDiXveqQ0gg

Reflected XSS filter bypass 3 - https://www.youtube.com/watch?v=hb_qENFUdOk

Reflected XSS filter bypass 4 - https://www.youtube.com/watch?v=Fg1qqkedGUk

Reflected XSS filter bypass 5 - https://www.youtube.com/watch?v=NImym71f3Bc

Reflected XSS filter bypass 6 - https://www.youtube.com/watch?v=9eGzAym2a5Q

Reflected XSS filter bypass 7 - https://www.youtube.com/watch?v=ObfEI84_MtM

Reflected XSS filter bypass 8 - https://www.youtube.com/watch?v=2c9xMe3VZ9Q

Reflected XSS filter bypass 9 - https://www.youtube.com/watch?v=-48zknvo7LM

Introduction to Stored XSS - https://www.youtube.com/watch?v=SHmQ3sQFeLE

Stored XSS 1 - https://www.youtube.com/watch?v=oHIl_pCahsQ

Stored XSS 2 - https://www.youtube.com/watch?v=dBTuWzX8hd0

Stored XSS 3 - https://www.youtube.com/watch?v=PFG0lkMeYDc

Stored XSS 4 - https://www.youtube.com/watch?v=YPUBFklUWLc

Stored XSS 5 - https://www.youtube.com/watch?v=x9Zx44EV-Og

SQL injection

Part 1 - Install SQLi lab - https://www.youtube.com/watch?v=NJ9AA1_t1Ic&index=23&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 2 - SQL lab series - https://www.youtube.com/watch?v=TA2h_kUqfhU&index=22&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 3 - SQL lab series - https://www.youtube.com/watch?v=N0zAChmZIZU&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro&index=21

Part 4 - SQL lab series - https://www.youtube.com/watch?v=6pVxm5mWBVU&index=20&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 5 - SQL lab series - https://www.youtube.com/watch?v=0tyerVP9R98&index=19&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 6 - Double query injection - https://www.youtube.com/watch?v=zaRlcPbfX4M&index=18&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 7 - Double query injection cont… - https://www.youtube.com/watch?v=9utdAPxmvaI&index=17&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 8 - Blind injection boolean based - https://www.youtube.com/watch?v=u7Z7AIR6cMI&index=16&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 9 - Blind injection time based - https://www.youtube.com/watch?v=gzU1YBu_838&index=15&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 10 - Dumping DB using outfile - https://www.youtube.com/watch?v=ADW844OA6io&index=14&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 11 - Post parameter injection error based - https://www.youtube.com/watch?v=6sQ23tqiTXY&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro&index=13

Part 12 - POST parameter injection double query based - https://www.youtube.com/watch?v=tjFXWQY4LuA&index=12&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 13 - POST parameter injection blind boolean and time based - https://www.youtube.com/watch?v=411G-4nH5jE&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro&index=10

Part 14 - Post parameter injection in UPDATE query - https://www.youtube.com/watch?v=2FgLcPuU7Vw&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro&index=11

Part 15 - Injection in insert query - https://www.youtube.com/watch?v=ZJiPsWxXYZs&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro&index=9

Part 16 - Cookie based injection - https://www.youtube.com/watch?v=-A3vVqfP8pA&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro&index=8

Part 17 - Second order injection -https://www.youtube.com/watch?v=e9pbC5BxiAE&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro&index=7

Part 18 - Bypassing blacklist filters - 1 - https://www.youtube.com/watch?v=5P-knuYoDdw&index=6&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 19 - Bypassing blacklist filters - 2 - https://www.youtube.com/watch?v=45BjuQFt55Y&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro&index=5

Part 20 - Bypassing blacklist filters - 3 - https://www.youtube.com/watch?v=c-Pjb_zLpH0&index=4&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro

Part 21 - Bypassing WAF - https://www.youtube.com/watch?v=uRDuCXFpHXc&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro&index=2

Part 22 - Bypassing WAF - Impedance mismatch - https://www.youtube.com/watch?v=ygVUebdv_Ws&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro&index=3

Part 23 - Bypassing addslashes - charset mismatch - https://www.youtube.com/watch?v=du-jkS6-sbo&list=PLkiAz1NPnw8qEgzS7cgVMKavvOAdogsro&index=1

NoSQL injection

Introduction to NoSQL injection - https://www.youtube.com/watch?v=h0h37-Dwd_A

Introduction to SQL vs NoSQL - Difference between MySQL and MongoDB with tutorial - https://www.youtube.com/watch?v=QwevGzVu_zk

Abusing NoSQL databases - https://www.youtube.com/watch?v=lcO1BTNh8r8

Making cry - attacking NoSQL for pentesters - https://www.youtube.com/watch?v=NgsesuLpyOg

Xpath and XML injection

Introduction to Xpath injection - https://www.youtube.com/watch?v=2_UyM6Ea0Yk&t=3102s

Introduction to XML injection - https://www.youtube.com/watch?v=9ZokuRHo-eY

Practical 1 - bWAPP - https://www.youtube.com/watch?v=6tV8EuaHI9M

Practical 2 - Mutillidae - https://www.youtube.com/watch?v=fV0qsqcScI4

Practical 3 - webgoat - https://www.youtube.com/watch?v=5ZDSPVp1TpM

Hack admin panel using Xpath injection - https://www.youtube.com/watch?v=vvlyYlXuVxI

XXE demo - https://www.youtube.com/watch?v=3B8QhyrEXlU

XXE demo 2 - https://www.youtube.com/watch?v=UQjxvEwyUUw

XXE demo 3 - https://www.youtube.com/watch?v=JI0daBHq6fA

LDAP injection

Introduction and practical 1 - https://www.youtube.com/watch?v=-TXFlg7S9ks

Practical 2 - https://www.youtube.com/watch?v=wtahzm_R8e4

OS command injection

OS command injection in bWAPP - https://www.youtube.com/watch?v=qLIkGJrMY9k

bWAAP- OS command injection with Commiux (All levels) - https://www.youtube.com/watch?v=5-1QLbVa8YE

Local file inclusion

Detailed introduction - https://www.youtube.com/watch?v=kcojXEwolIs

LFI demo 1 - https://www.youtube.com/watch?v=54hSHpVoz7A

LFI demo 2 - https://www.youtube.com/watch?v=qPq9hIVtitI

Remote file inclusion

Detailed introduction - https://www.youtube.com/watch?v=MZjORTEwpaw

RFI demo 1 - https://www.youtube.com/watch?v=gWt9A6eOkq0

RFI introduction and demo 2 - https://www.youtube.com/watch?v=htTEfokaKsM

HTTP splitting/smuggling

Detailed introduction - https://www.youtube.com/watch?v=bVaZWHrfiPw

Demo 1 - https://www.youtube.com/watch?v=mOf4H1aLiiE

Phase 11 – Generating and testing error codes

Generating normal error codes by visiting files that may not exist on the server - for example visit chintan.php or chintan.aspx file on any website and it may redirect you to 404.php or 404.aspx or their customer error page. Check if an error page is generated by default web server or application framework or a custom page is displayed which does not 405.display any sensitive information. Use BurpSuite fuzzing techniques to generate stack trace error codes -

https://www.youtube.com/watch?v=LDF6OkcvBzM