10 ways to encode IPs to bypass validations π
8.8.1028 β Partial Decimal (Class B)
Combines the 3rd and 4th octets: 4 Γ 256 + 4 = 1028
8.525316 β Partial Decimal (Class A)
Combines the last three octets into one decimal number
0x08.8.004.004 β Mixed Encoding
Hexadecimal + Decimal + Octal (segment by segment)
0x08.0x08.004.004 β Double Hex + Octal
Two segments in hex, two in octal
0x08.010.4.4 β Hex + Octal + Decimal Mix
134743044 β Single Decimal
Full 32-bit integer representation of the IP
0x08080404 β Full Hexadecimal IP
Entire IP encoded as a single hex literal
010.010.004.004 β All Octal
Each segment padded with 0 to force octal interpretation
0x8.0x8.0x4.0x4 β Hex per Segment
All four octets encoded individually in hex
8.8.0×404 β Partial Hex (Class B)
Last segment in hex: 0x404 = 1028
You can also use unicode digits instead!
These won’t resolve with curl/ping etc but may still work with other libraries:
β§.β§.β£.β£ β Circled Unicode digits
οΌ.οΌ.οΌ.οΌ β Fullwidth Unicode digits
π .π .π.π β Mathematical Unicode digits
Credits: AndrΓ© Baptista | Linkedin