CVE-2024-3596

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.

• CWE-354
• CWE-924

• http://www.openwall.com/lists/oss-security/2024/07/09/4Mailing List
• https://cert-portal.siemens.com/productcert/html/ssa-723487.html
• https://cert-portal.siemens.com/productcert/html/ssa-794185.html
• https://datatracker.ietf.org/doc/draft-ietf-radext-deprecating-radius/Technical Description
• https://datatracker.ietf.org/doc/html/rfc2865Technical Description
• https://networkradius.com/assets/pdf/radius_and_md5_collisions.pdfThird Party Advisory
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0014Third Party Advisory
• https://www.blastradius.fail/Technical Description
• http://www.openwall.com/lists/oss-security/2024/07/09/4Mailing List
• https://datatracker.ietf.org/doc/draft-ietf-radext-deprecating-radius/Technical Description
• https://datatracker.ietf.org/doc/html/rfc2865Technical Description
• https://networkradius.com/assets/pdf/radius_and_md5_collisions.pdfThird Party Advisory
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0014Third Party Advisory
• https://security.netapp.com/advisory/ntap-20240822-0001/Third Party Advisory
• https://today.ucsd.edu/story/computer-scientists-discover-vulnerabilities-in-a-popular-security-protocolThird Party Advisory
• https://www.blastradius.fail/Technical Description
• https://www.kb.cert.org/vuls/id/456537
• https://cert-portal.siemens.com/productcert/html/ssa-364175.html
• https://cert-portal.siemens.com/productcert/html/ssa-723487.html
• https://cert-portal.siemens.com/productcert/html/ssa-770770.html
• https://cert-portal.siemens.com/productcert/html/ssa-794185.html

Published

Jul 9, 2024

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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