IPv4 Mapped IPv6 Addresses, (Tue, Mar 17th)
ID: 07715c71-6d14-52ed-8bab-8eec3447b5d0
STIX ID: report--07715c71-6d14-52ed-8bab-8eec3447b5d0
Feed Name: SANS ISC Diary
This short research note examines IPv4-mapped IPv6 addresses (the ::ffff:/96 prefix), demonstrates how various utilities and browsers treat them (examples with ping, ssh, curl), and highlights that attackers might use these representations to bypass simple string-matching filters for URLs; it emphasizes that network traffic remains IPv4 and solicits ideas for further testing or abuse.
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