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Description

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.

PUBLISHED Reserved 2024-04-10 | Published 2024-07-09 | Updated 2025-11-04 | Assigner certcc

Problem types

CWE-328: Use of Weak Hash

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

CWE-924 Improper Enforcement of Message Integrity During Transmission in a Communication Channel

Product status

2865
affected

Credits

Thanks to Sharon Goldberg, Miro Haller, Nadia Heninger, Mike Milano, Dan Shumow, Marc Stevens, and Adam Suhl who researched and reported this vulnerability finder

References

security.netapp.com/advisory/ntap-20240822-0001/

today.ucsd.edu/...erabilities-in-a-popular-security-protocol

datatracker.ietf.org/doc/html/rfc2865

datatracker.ietf.org/...raft-ietf-radext-deprecating-radius/

networkradius.com/assets/pdf/radius_and_md5_collisions.pdf

www.blastradius.fail/

www.openwall.com/lists/oss-security/2024/07/09/4

psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0014

www.kb.cert.org/vuls/id/456537

datatracker.ietf.org/doc/html/rfc2865

datatracker.ietf.org/...raft-ietf-radext-deprecating-radius/

networkradius.com/assets/pdf/radius_and_md5_collisions.pdf

www.blastradius.fail/

www.openwall.com/lists/oss-security/2024/07/09/4

psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0014

cert-portal.siemens.com/productcert/html/ssa-794185.html (Siemens Security Advisory by Siemens ProductCERT for SIPROTEC, SICAM and related product) vendor-advisory

cert-portal.siemens.com/productcert/html/ssa-723487.html (Siemens Security Advisory by Siemens ProductCERT to SCALANCE, RUGGEDCOM and related products.) vendor-advisory

cve.org (CVE-2024-3596)

nvd.nist.gov (CVE-2024-3596)