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RADIUS Protocol under RFC 2865 is susceptible to forgery attacks by a local attacker who can modify any valid Response (Access-Accept, Access-Reject, or Access-Challenge) to any other response using a chosen-prefix collision attack against MD5 Response Authenticator signature.
Reserved 2024-04-10 | Published 2024-07-09 | Updated 2024-08-29 | Assigner certccCWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-924 Improper Enforcement of Message Integrity During Transmission in a Communication Channel
Thanks to Sharon Goldberg, Miro Haller, Nadia Heninger, Mike Milano, Dan Shumow, Marc Stevens, and Adam Suhl who researched and reported this vulnerability
datatracker.ietf.org/doc/html/rfc2865
datatracker.ietf.org/...raft-ietf-radext-deprecating-radius/
networkradius.com/assets/pdf/radius_and_md5_collisions.pdf
www.openwall.com/lists/oss-security/2024/07/09/4
psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0014
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