CVE-2024-3596

critical

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.

References

https://today.ucsd.edu/story/computer-scientists-discover-vulnerabilities-in-a-popular-security-protocol

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

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

https://networkradius.com/assets/pdf/radius_and_md5_collisions.pdf

https://securityaffairs.com/165641/security/palo-alto-networks-critical-bug-expedition.html

https://www.cisa.gov/news-events/ics-advisories/icsa-24-193-05

https://www.blastradius.fail/

https://blog.cloudflare.com/radius-udp-vulnerable-md5-attack

https://arstechnica.com/security/2024/07/new-blast-radius-attack-breaks-30-year-old-protocol-used-in-networks-everywhere/

https://datatracker.ietf.org/doc/html/rfc2865

https://datatracker.ietf.org/doc/draft-ietf-radext-deprecating-radius/

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

Details

Source: Mitre, NVD

Published: 2024-07-09

Updated: 2025-03-18

Named Vulnerability: Blast-RADIUS

Risk Information

CVSS v2

Base Score: 7.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.2

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Critical

EPSS

EPSS: 0.02914